Let's divide 42217523 by 648
Our goal is to divide 42217523 by 648.

Advancing to step 1:
If we divide 4 by 648, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 648

Moving on to step 2:
648 can be fit into 42 0 times, resulting in a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Grab the next digit (2) from the dividend, add it to 42, then carry on: 422 / 648

On to step 3:
648 can be fit into 422 0 times, resulting in a remainder of 422.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 422 after subtracting 0 from 422.
Take the next digit (1) from the dividend and append it to 422, then repeat: 4221 / 648

Going ahead to step 4:
4221 divided by 648 is 6 with a remainder of 333.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtracting 3888 from 4221 leaves us with 333.
Take the next digit (7) from the dividend and append it to 333, then repeat: 3337 / 648

Step 5:
3337 divided by 648 is 5 with a remainder of 97.
The number 5 becomes the next digit in our result. 
Result so far: 65.0
Subtract 3240 from 3337 to get 97.
Fetch the next digit (5) from the dividend, attach it to 97 and continue: 975 / 648

On to step 6:
648 goes into 975 1 times with a remainder of 327.
The next digit of our result is 1. 
Result so far: 651.0
If we subtract 648 from 975, we get 327.
Take the next digit (2) from the dividend and append it to 327, then repeat: 3272 / 648

Let's proceed to step 7:
648 can be fit into 3272 5 times, resulting in a remainder of 32.
Use 5 as the next digit of our solution. 
Result so far: 6515.0
If we take 3240 away from 3272, we end up with 32.
Grab the next digit (3) from the dividend, add it to 32, then carry on: 323 / 648

On to step 8:
648 goes into 323 0 times with a remainder of 323.
Put 0 as the next digit of the answer. 
Result so far: 65150.0
The remainder is 323 after subtracting 0 from 323.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

Let's proceed to step 9:
648 goes into 3230 4 times with a remainder of 638.
Record the quotient 4 as the next digit in the result. 
Result so far: 65150.4
Subtract 2592 from 3230 to get 638.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6380, and continue the process.

Advancing to step 10:
648 can be fit into 6380 9 times, resulting in a remainder of 548.
Write down 9 as next digit of the result. 
Result so far: 65150.49
Subtract 5832 from 6380 to get 548.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

Going ahead to step 11:
When dividing 5480 by 648, we get 8 with a remainder of 296.
The next digit of our result is 8. 
Result so far: 65150.498
Subtract 5184 from 5480 to get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Going ahead to step 12:
648 can be fit into 2960 4 times, resulting in a remainder of 368.
The number 4 becomes the next digit in our result. 
Result so far: 65150.4984
If we take 2592 away from 2960, we end up with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Step 13:
648 goes into 3680 5 times with a remainder of 440.
Put 5 as the next digit of the answer. 
Result so far: 65150.49845
Subtract 3240 from 3680 to get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Let's proceed to step 14:
The number 648 fits into 4400 6 times, leaving a remainder of 512.
Record the quotient 6 as the next digit in the result. 
Result so far: 65150.498456
If we subtract 3888 from 4400, we get 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Let's proceed to step 15:
648 can be fit into 5120 7 times, resulting in a remainder of 584.
The next digit of our result is 7. 
Result so far: 65150.4984567
If we take 4536 away from 5120, we end up with 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Let's proceed to step 16:
The number 648 fits into 5840 9 times, leaving a remainder of 8.
The next digit of our result is 9. 
Result so far: 65150.49845679
Deduct 5832 from 5840 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 65150.49845679 with a remaining 8e-09.