We're dividing 99089645 by 129 
We're looking to find how many times 129 goes into 99089645.

Step 1:
If we divide 9 by 129, we get 0 and a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 129

Step 2:
The number 129 fits into 99 0 times, leaving a remainder of 99.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 99 after subtracting 0 from 99.
Append the next digit (0) from the dividend to 99 and continue with: 990 / 129

On to step 3:
The number 129 fits into 990 7 times, leaving a remainder of 87.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtract 903 from 990 to get 87.
Grab the next digit (8) from the dividend, add it to 87, then carry on: 878 / 129

Moving on to step 4:
If we divide 878 by 129, we get 6 and a remainder of 104.
Use 6 as the next digit of our solution. 
Result so far: 76.0
Subtract 774 from 878 to get 104.
Fetch the next digit (9) from the dividend, attach it to 104 and continue: 1049 / 129

On to step 5:
1049 divided by 129 is 8 with a remainder of 17.
Write down 8 as next digit of the result. 
Result so far: 768.0
If we take 1032 away from 1049, we end up with 17.
Grab the next digit (6) from the dividend, add it to 17, then carry on: 176 / 129

Going ahead to step 6:
176 divided by 129 is 1 with a remainder of 47.
Write down 1 as next digit of the result. 
Result so far: 7681.0
Deduct 129 from 176 and we're left with 47.
Bring next digit (4) of the dividend behind the 47 and repeat the process: 474 / 129

Let's proceed to step 7:
129 can be fit into 474 3 times, resulting in a remainder of 87.
Use 3 as the next digit of our solution. 
Result so far: 76813.0
If we take 387 away from 474, we end up with 87.
Include the next digit (5) from the dividend after 87, then repeat: 875 / 129

Advancing to step 8:
129 can be fit into 875 6 times, resulting in a remainder of 101.
Use 6 as the next digit of our solution. 
Result so far: 768136.0
Deduct 774 from 875 and we're left with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Let's proceed to step 9:
1010 divided by 129 is 7 with a remainder of 107.
The next digit of our result is 7. 
Result so far: 768136.7
The remainder is 107 after subtracting 903 from 1010.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Advancing to step 10:
129 can be fit into 1070 8 times, resulting in a remainder of 38.
Write down 8 as next digit of the result. 
Result so far: 768136.78
Subtract 1032 from 1070 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 11:
If we divide 380 by 129, we get 2 and a remainder of 122.
The next digit of our result is 2. 
Result so far: 768136.782
Subtract 258 from 380 to get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Moving on to step 12:
The number 129 fits into 1220 9 times, leaving a remainder of 59.
The number 9 becomes the next digit in our result. 
Result so far: 768136.7829
Deduct 1161 from 1220 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Let's proceed to step 13:
129 can be fit into 590 4 times, resulting in a remainder of 74.
Write down 4 as next digit of the result. 
Result so far: 768136.78294
Deduct 516 from 590 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Moving on to step 14:
129 goes into 740 5 times with a remainder of 95.
Put 5 as the next digit of the answer. 
Result so far: 768136.782945
If we take 645 away from 740, we end up with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Step 15:
If we divide 950 by 129, we get 7 and a remainder of 47.
The number 7 becomes the next digit in our result. 
Result so far: 768136.7829457
If we subtract 903 from 950, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 16:
129 goes into 470 3 times with a remainder of 83.
Put 3 as the next digit of the answer. 
Result so far: 768136.78294573
Subtract 387 from 470 to get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

The quotient of the division is 768136.78294573, and the remainder is 8.3e-08.