63991480 ÷ 79 
We want to divide 63991480 by 79.

Advancing to step 1:
If we divide 6 by 79, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 79

Step 2:
The number 79 fits into 63 0 times, leaving a remainder of 63.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 63, we get 63.
Take the next digit (9) from the dividend and append it to 63, then repeat: 639 / 79

Step 3:
79 can be fit into 639 8 times, resulting in a remainder of 7.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 632 from 639 leaves us with 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 79

On to step 4:
The number 79 fits into 79 1 times, leaving a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 81.0
If we subtract 79 from 79, we get 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 79

On to step 5:
The number 79 fits into 1 0 times, leaving a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 810.0
Subtract 0 from 1 to get 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 79

Advancing to step 6:
79 can be fit into 14 0 times, resulting in a remainder of 14.
Use 0 as the next digit of our solution. 
Result so far: 8100.0
If we subtract 0 from 14, we get 14.
Grab the next digit (8) from the dividend, add it to 14, then carry on: 148 / 79

On to step 7:
When dividing 148 by 79, we get 1 with a remainder of 69.
Use 1 as the next digit of our solution. 
Result so far: 81001.0
Subtract 79 from 148 to get 69.
Take the next digit (0) from the dividend and append it to 69, then repeat: 690 / 79

Going ahead to step 8:
690 divided by 79 is 8 with a remainder of 58.
The next digit of our result is 8. 
Result so far: 810018.0
If we subtract 632 from 690, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 9:
The number 79 fits into 580 7 times, leaving a remainder of 27.
Use 7 as the next digit of our solution. 
Result so far: 810018.7
Subtract 553 from 580 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 10:
79 goes into 270 3 times with a remainder of 33.
Use 3 as the next digit of our solution. 
Result so far: 810018.73
The remainder is 33 after subtracting 237 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 11:
If we divide 330 by 79, we get 4 and a remainder of 14.
Use 4 as the next digit of our solution. 
Result so far: 810018.734
If we subtract 316 from 330, 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.

Moving on to step 12:
If we divide 140 by 79, we get 1 and a remainder of 61.
Write down 1 as next digit of the result. 
Result so far: 810018.7341
Subtract 79 from 140 to get 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 13:
610 divided by 79 is 7 with a remainder of 57.
Record the quotient 7 as the next digit in the result. 
Result so far: 810018.73417
Subtract 553 from 610 to get 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 14:
When dividing 570 by 79, we get 7 with a remainder of 17.
Put 7 as the next digit of the answer. 
Result so far: 810018.734177
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.

After the division, we end up with 810018.734177 and a remainder of 1.7e-06.