639756 divided by 79 
We're looking to find how many times 79 goes into 639756.

Moving on to step 1:
79 can be fit into 6 0 times, resulting in a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 79

Step 2:
When dividing 63 by 79, we get 0 with a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 63, we end up with 63.
Grab the next digit (9) from the dividend, add it to 63, then carry on: 639 / 79

Moving on to step 3:
The number 79 fits into 639 8 times, leaving a remainder of 7.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 632 from 639 and we're left with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 79

Let's proceed to step 4:
79 goes into 77 0 times with a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 80.0
If we subtract 0 from 77, we get 77.
Append the next digit (5) from the dividend to 77 and continue with: 775 / 79

Advancing to step 5:
79 goes into 775 9 times with a remainder of 64.
The next digit of our result is 9. 
Result so far: 809.0
The remainder is 64 after subtracting 711 from 775.
Fetch the next digit (6) from the dividend, attach it to 64 and continue: 646 / 79

Advancing to step 6:
If we divide 646 by 79, we get 8 and a remainder of 14.
Use 8 as the next digit of our solution. 
Result so far: 8098.0
If we subtract 632 from 646, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 7:
If we divide 140 by 79, we get 1 and a remainder of 61.
Put 1 as the next digit of the answer. 
Result so far: 8098.1
Deduct 79 from 140 and we're left 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.

Advancing to step 8:
If we divide 610 by 79, we get 7 and a remainder of 57.
Record the quotient 7 as the next digit in the result. 
Result so far: 8098.17
Subtracting 553 from 610 leaves us with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 9:
The number 79 fits into 570 7 times, leaving a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 8098.177
If we take 553 away from 570, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

The final outcome is 8098.177, with a leftover of 0.0017.