We look at the division of 88520523 by 645 
We want to figure out the number of times 88520523 can be divided by 645.

Let's proceed to step 1:
645 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 645

Advancing to step 2:
645 can be fit into 88 0 times, resulting in a remainder of 88.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 88 to get 88.
Grab the next digit (5) from the dividend, add it to 88, then carry on: 885 / 645

Let's proceed to step 3:
If we divide 885 by 645, we get 1 and a remainder of 240.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 240 after subtracting 645 from 885.
Append the next digit (2) from the dividend to 240 and continue with: 2402 / 645

Step 4:
If we divide 2402 by 645, we get 3 and a remainder of 467.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we subtract 1935 from 2402, we get 467.
Append the next digit (0) from the dividend to 467 and continue with: 4670 / 645

Going ahead to step 5:
The number 645 fits into 4670 7 times, leaving a remainder of 155.
Put 7 as the next digit of the answer. 
Result so far: 137.0
If we take 4515 away from 4670, we end up with 155.
Append the next digit (5) from the dividend to 155 and continue with: 1555 / 645

Let's proceed to step 6:
If we divide 1555 by 645, we get 2 and a remainder of 265.
Use 2 as the next digit of our solution. 
Result so far: 1372.0
Subtracting 1290 from 1555 leaves us with 265.
Grab the next digit (2) from the dividend, add it to 265, then carry on: 2652 / 645

Let's proceed to step 7:
The number 645 fits into 2652 4 times, leaving a remainder of 72.
The number 4 becomes the next digit in our result. 
Result so far: 13724.0
If we take 2580 away from 2652, we end up with 72.
Take the next digit (3) from the dividend and append it to 72, then repeat: 723 / 645

On to step 8:
When dividing 723 by 645, we get 1 with a remainder of 78.
The next digit of our result is 1. 
Result so far: 137241.0
The remainder is 78 after subtracting 645 from 723.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 9:
645 can be fit into 780 1 times, resulting in a remainder of 135.
Use 1 as the next digit of our solution. 
Result so far: 137241.1
Deduct 645 from 780 and we're left with 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Going ahead to step 10:
If we divide 1350 by 645, we get 2 and a remainder of 60.
The number 2 becomes the next digit in our result. 
Result so far: 137241.12
The remainder is 60 after subtracting 1290 from 1350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 11:
645 can be fit into 600 0 times, resulting in a remainder of 600.
Write down 0 as next digit of the result. 
Result so far: 137241.12
If we take 0 away from 600, we end up with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Moving on to step 12:
645 goes into 6000 9 times with a remainder of 195.
Put 9 as the next digit of the answer. 
Result so far: 137241.1209
Deduct 5805 from 6000 and we're left with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Going ahead to step 13:
1950 divided by 645 is 3 with a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 137241.12093
The remainder is 15 after subtracting 1935 from 1950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 14:
150 divided by 645 is 0 with a remainder of 150.
The next digit of our result is 0. 
Result so far: 137241.12093
Subtract 0 from 150 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 15:
645 can be fit into 1500 2 times, resulting in a remainder of 210.
Use 2 as the next digit of our solution. 
Result so far: 137241.1209302
If we take 1290 away from 1500, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Moving on to step 16:
645 can be fit into 2100 3 times, resulting in a remainder of 165.
The number 3 becomes the next digit in our result. 
Result so far: 137241.12093023
Deduct 1935 from 2100 and we're left with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

The final result is 137241.12093023 with a remainder of 1.65e-07.