We're dividing 640072 by 83 
We want to figure out the number of times 640072 can be divided by 83.

On to step 1:
When dividing 6 by 83, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 83

Let's proceed to step 2:
83 goes into 64 0 times with a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Take the next digit (0) from the dividend and append it to 64, then repeat: 640 / 83

On to step 3:
640 divided by 83 is 7 with a remainder of 59.
The next digit of our result is 7. 
Result so far: 7.0
If we take 581 away from 640, we end up with 59.
Take the next digit (0) from the dividend and append it to 59, then repeat: 590 / 83

Let's proceed to step 4:
590 divided by 83 is 7 with a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 77.0
Deduct 581 from 590 and we're left with 9.
Take the next digit (7) from the dividend and append it to 9, then repeat: 97 / 83

Moving on to step 5:
The number 83 fits into 97 1 times, leaving a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 771.0
Subtracting 83 from 97 leaves us with 14.
Include the next digit (2) from the dividend after 14, then repeat: 142 / 83

Step 6:
The number 83 fits into 142 1 times, leaving a remainder of 59.
Use 1 as the next digit of our solution. 
Result so far: 7711.0
Deduct 83 from 142 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Step 7:
590 divided by 83 is 7 with a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 7711.7
Deduct 581 from 590 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 8:
If we divide 90 by 83, we get 1 and a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 7711.71
If we take 83 away from 90, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 9:
The number 83 fits into 70 0 times, leaving a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 7711.71
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 10:
If we divide 700 by 83, we get 8 and a remainder of 36.
Write down 8 as next digit of the result. 
Result so far: 7711.7108
Deduct 664 from 700 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 11:
If we divide 360 by 83, we get 4 and a remainder of 28.
The next digit of our result is 4. 
Result so far: 7711.71084
Subtract 332 from 360 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 12:
83 can be fit into 280 3 times, resulting in a remainder of 31.
Write down 3 as next digit of the result. 
Result so far: 7711.710843
Subtracting 249 from 280 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 13:
310 divided by 83 is 3 with a remainder of 61.
The number 3 becomes the next digit in our result. 
Result so far: 7711.7108433
Subtracting 249 from 310 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

The quotient of the division is 7711.7108433, and the remainder is 6.1e-07.