We're dividing 72937883 by 640 
Let's see how many times 640 fits into 72937883.

Going ahead to step 1:
640 can be fit into 7 0 times, resulting in a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 640

Let's proceed to step 2:
If we divide 72 by 640, we get 0 and a remainder of 72.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 72 to get 72.
Fetch the next digit (9) from the dividend, attach it to 72 and continue: 729 / 640

On to step 3:
When dividing 729 by 640, we get 1 with a remainder of 89.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 640 from 729, we get 89.
Grab the next digit (3) from the dividend, add it to 89, then carry on: 893 / 640

Let's proceed to step 4:
The number 640 fits into 893 1 times, leaving a remainder of 253.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Deduct 640 from 893 and we're left with 253.
Take the next digit (7) from the dividend and append it to 253, then repeat: 2537 / 640

Step 5:
2537 divided by 640 is 3 with a remainder of 617.
Write down 3 as next digit of the result. 
Result so far: 113.0
The remainder is 617 after subtracting 1920 from 2537.
Grab the next digit (8) from the dividend, add it to 617, then carry on: 6178 / 640

Going ahead to step 6:
640 goes into 6178 9 times with a remainder of 418.
The next digit of our result is 9. 
Result so far: 1139.0
If we subtract 5760 from 6178, we get 418.
Take the next digit (8) from the dividend and append it to 418, then repeat: 4188 / 640

On to step 7:
4188 divided by 640 is 6 with a remainder of 348.
The number 6 becomes the next digit in our result. 
Result so far: 11396.0
Subtract 3840 from 4188 to get 348.
Fetch the next digit (3) from the dividend, attach it to 348 and continue: 3483 / 640

Step 8:
When dividing 3483 by 640, we get 5 with a remainder of 283.
Record the quotient 5 as the next digit in the result. 
Result so far: 113965.0
Subtracting 3200 from 3483 leaves us with 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

Let's proceed to step 9:
When dividing 2830 by 640, we get 4 with a remainder of 270.
Record the quotient 4 as the next digit in the result. 
Result so far: 113965.4
Deduct 2560 from 2830 and we're left with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

On to step 10:
The number 640 fits into 2700 4 times, leaving a remainder of 140.
Use 4 as the next digit of our solution. 
Result so far: 113965.44
Subtract 2560 from 2700 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Our division results in 113965.44 with a remaining 0.14.