We're dividing 813520 by 64 
We're looking to find how many times 64 goes into 813520.

Advancing to step 1:
64 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 64

Going ahead to step 2:
64 goes into 81 1 times with a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 64 from 81 to get 17.
Include the next digit (3) from the dividend after 17, then repeat: 173 / 64

Let's proceed to step 3:
If we divide 173 by 64, we get 2 and a remainder of 45.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtracting 128 from 173 leaves us with 45.
Take the next digit (5) from the dividend and append it to 45, then repeat: 455 / 64

Let's proceed to step 4:
The number 64 fits into 455 7 times, leaving a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 127.0
If we take 448 away from 455, we end up with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 64

Moving on to step 5:
64 goes into 72 1 times with a remainder of 8.
The next digit of our result is 1. 
Result so far: 1271.0
If we subtract 64 from 72, we get 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 64

Going ahead to step 6:
If we divide 80 by 64, we get 1 and a remainder of 16.
Use 1 as the next digit of our solution. 
Result so far: 12711.0
Deduct 64 from 80 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 7:
64 goes into 160 2 times with a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 12711.2
Deduct 128 from 160 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 8:
The number 64 fits into 320 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 12711.25
If we take 320 away from 320, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
If we divide 0 by 64, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 12711.25
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
64 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 12711.25
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 12711.25 with a remaining 0.0.