63799655 ÷ 129 
We want to divide 63799655 by 129.

Advancing to step 1:
129 can be fit into 6 0 times, resulting in 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.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 129

Advancing to step 2:
129 goes into 63 0 times with a remainder of 63.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 63, we get 63.
Take the next digit (7) from the dividend and append it to 63, then repeat: 637 / 129

Step 3:
129 goes into 637 4 times with a remainder of 121.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we take 516 away from 637, we end up with 121.
Grab the next digit (9) from the dividend, add it to 121, then carry on: 1219 / 129

Advancing to step 4:
When dividing 1219 by 129, we get 9 with a remainder of 58.
The number 9 becomes the next digit in our result. 
Result so far: 49.0
If we take 1161 away from 1219, we end up with 58.
Include the next digit (9) from the dividend after 58, then repeat: 589 / 129

Moving on to step 5:
129 goes into 589 4 times with a remainder of 73.
Record the quotient 4 as the next digit in the result. 
Result so far: 494.0
If we take 516 away from 589, we end up with 73.
Grab the next digit (6) from the dividend, add it to 73, then carry on: 736 / 129

Going ahead to step 6:
129 can be fit into 736 5 times, resulting in a remainder of 91.
Put 5 as the next digit of the answer. 
Result so far: 4945.0
Subtract 645 from 736 to get 91.
Grab the next digit (5) from the dividend, add it to 91, then carry on: 915 / 129

Step 7:
When dividing 915 by 129, we get 7 with a remainder of 12.
Record the quotient 7 as the next digit in the result. 
Result so far: 49457.0
Subtract 903 from 915 to get 12.
Fetch the next digit (5) from the dividend, attach it to 12 and continue: 125 / 129

Step 8:
129 can be fit into 125 0 times, resulting in a remainder of 125.
Put 0 as the next digit of the answer. 
Result so far: 494570.0
Subtracting 0 from 125 leaves us with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

On to step 9:
If we divide 1250 by 129, we get 9 and a remainder of 89.
The next digit of our result is 9. 
Result so far: 494570.9
Subtracting 1161 from 1250 leaves us with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Step 10:
129 can be fit into 890 6 times, resulting in a remainder of 116.
Use 6 as the next digit of our solution. 
Result so far: 494570.96
The remainder is 116 after subtracting 774 from 890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Let's proceed to step 11:
129 can be fit into 1160 8 times, resulting in a remainder of 128.
The number 8 becomes the next digit in our result. 
Result so far: 494570.968
Subtracting 1032 from 1160 leaves us with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Advancing to step 12:
1280 divided by 129 is 9 with a remainder of 119.
Record the quotient 9 as the next digit in the result. 
Result so far: 494570.9689
If we subtract 1161 from 1280, we get 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Going ahead to step 13:
129 can be fit into 1190 9 times, resulting in a remainder of 29.
Record the quotient 9 as the next digit in the result. 
Result so far: 494570.96899
Deduct 1161 from 1190 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

The quotient of the division is 494570.96899, and the remainder is 2.9e-05.