63813976 divided by 817 
Our goal is to divide 63813976 by 817.

Step 1:
When dividing 6 by 817, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 817

On to step 2:
817 can be fit into 63 0 times, resulting in a remainder of 63.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Fetch the next digit (8) from the dividend, attach it to 63 and continue: 638 / 817

Advancing to step 3:
When dividing 638 by 817, we get 0 with a remainder of 638.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 638 to get 638.
Include the next digit (1) from the dividend after 638, then repeat: 6381 / 817

Going ahead to step 4:
817 can be fit into 6381 7 times, resulting in a remainder of 662.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 662 after subtracting 5719 from 6381.
Grab the next digit (3) from the dividend, add it to 662, then carry on: 6623 / 817

Advancing to step 5:
6623 divided by 817 is 8 with a remainder of 87.
Write down 8 as next digit of the result. 
Result so far: 78.0
Subtracting 6536 from 6623 leaves us with 87.
Fetch the next digit (9) from the dividend, attach it to 87 and continue: 879 / 817

Advancing to step 6:
If we divide 879 by 817, we get 1 and a remainder of 62.
Put 1 as the next digit of the answer. 
Result so far: 781.0
If we subtract 817 from 879, we get 62.
Append the next digit (7) from the dividend to 62 and continue with: 627 / 817

Moving on to step 7:
The number 817 fits into 627 0 times, leaving a remainder of 627.
Put 0 as the next digit of the answer. 
Result so far: 7810.0
The remainder is 627 after subtracting 0 from 627.
Grab the next digit (6) from the dividend, add it to 627, then carry on: 6276 / 817

On to step 8:
The number 817 fits into 6276 7 times, leaving a remainder of 557.
The next digit of our result is 7. 
Result so far: 78107.0
Subtract 5719 from 6276 to get 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

On to step 9:
When dividing 5570 by 817, we get 6 with a remainder of 668.
Use 6 as the next digit of our solution. 
Result so far: 78107.6
Deduct 4902 from 5570 and we're left with 668.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6680, and continue the process.

Going ahead to step 10:
6680 divided by 817 is 8 with a remainder of 144.
The next digit of our result is 8. 
Result so far: 78107.68
Subtract 6536 from 6680 to get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Moving on to step 11:
1440 divided by 817 is 1 with a remainder of 623.
Record the quotient 1 as the next digit in the result. 
Result so far: 78107.681
If we subtract 817 from 1440, we get 623.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6230, and continue the process.

Advancing to step 12:
817 goes into 6230 7 times with a remainder of 511.
Use 7 as the next digit of our solution. 
Result so far: 78107.6817
Deduct 5719 from 6230 and we're left with 511.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5110, and continue the process.

Moving on to step 13:
If we divide 5110 by 817, we get 6 and a remainder of 208.
The number 6 becomes the next digit in our result. 
Result so far: 78107.68176
Subtract 4902 from 5110 to get 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

On to step 14:
2080 divided by 817 is 2 with a remainder of 446.
Put 2 as the next digit of the answer. 
Result so far: 78107.681762
Subtracting 1634 from 2080 leaves us with 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Step 15:
4460 divided by 817 is 5 with a remainder of 375.
Write down 5 as next digit of the result. 
Result so far: 78107.6817625
Deduct 4085 from 4460 and we're left with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Step 16:
The number 817 fits into 3750 4 times, leaving a remainder of 482.
Use 4 as the next digit of our solution. 
Result so far: 78107.68176254
The remainder is 482 after subtracting 3268 from 3750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

The final outcome is 78107.68176254, with a leftover of 4.82e-07.