We look at the division of 99305214 by 129 
Our goal is to divide 99305214 by 129.

On to step 1:
The number 129 fits into 9 0 times, leaving a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 129

Advancing to step 2:
When dividing 99 by 129, we get 0 with a remainder of 99.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 99, we end up with 99.
Fetch the next digit (3) from the dividend, attach it to 99 and continue: 993 / 129

Moving on to step 3:
129 can be fit into 993 7 times, resulting in a remainder of 90.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Deduct 903 from 993 and we're left with 90.
Grab the next digit (0) from the dividend, add it to 90, then carry on: 900 / 129

Advancing to step 4:
If we divide 900 by 129, we get 6 and a remainder of 126.
Write down 6 as next digit of the result. 
Result so far: 76.0
Deduct 774 from 900 and we're left with 126.
Take the next digit (5) from the dividend and append it to 126, then repeat: 1265 / 129

On to step 5:
129 can be fit into 1265 9 times, resulting in a remainder of 104.
The number 9 becomes the next digit in our result. 
Result so far: 769.0
Subtract 1161 from 1265 to get 104.
Include the next digit (2) from the dividend after 104, then repeat: 1042 / 129

Let's proceed to step 6:
The number 129 fits into 1042 8 times, leaving a remainder of 10.
The next digit of our result is 8. 
Result so far: 7698.0
Subtracting 1032 from 1042 leaves us with 10.
Append the next digit (1) from the dividend to 10 and continue with: 101 / 129

Let's proceed to step 7:
When dividing 101 by 129, we get 0 with a remainder of 101.
The next digit of our result is 0. 
Result so far: 76980.0
The remainder is 101 after subtracting 0 from 101.
Bring next digit (4) of the dividend behind the 101 and repeat the process: 1014 / 129

Going ahead to step 8:
The number 129 fits into 1014 7 times, leaving a remainder of 111.
The next digit of our result is 7. 
Result so far: 769807.0
If we take 903 away from 1014, we end up with 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

On to step 9:
If we divide 1110 by 129, we get 8 and a remainder of 78.
Write down 8 as next digit of the result. 
Result so far: 769807.8
Subtracting 1032 from 1110 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 10:
The number 129 fits into 780 6 times, leaving a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 769807.86
Deduct 774 from 780 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 11:
If we divide 60 by 129, we get 0 and a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 769807.86
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 12:
600 divided by 129 is 4 with a remainder of 84.
The next digit of our result is 4. 
Result so far: 769807.8604
If we take 516 away from 600, we end up with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Advancing to step 13:
840 divided by 129 is 6 with a remainder of 66.
Use 6 as the next digit of our solution. 
Result so far: 769807.86046
Subtract 774 from 840 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 14:
129 goes into 660 5 times with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 769807.860465
If we take 645 away from 660, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 15:
If we divide 150 by 129, we get 1 and a remainder of 21.
The number 1 becomes the next digit in our result. 
Result so far: 769807.8604651
Subtract 129 from 150 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 16:
129 can be fit into 210 1 times, resulting in a remainder of 81.
Write down 1 as next digit of the result. 
Result so far: 769807.86046511
If we subtract 129 from 210, we get 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

The quotient of the division is 769807.86046511, and the remainder is 8.1e-08.