We're dividing 91269454 by 129 
We want to divide 91269454 by 129.

Let's proceed to step 1:
When dividing 9 by 129, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 129

On to step 2:
91 divided by 129 is 0 with a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 91, we get 91.
Take the next digit (2) from the dividend and append it to 91, then repeat: 912 / 129

Moving on to step 3:
129 goes into 912 7 times with a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 903 from 912 leaves us with 9.
Include the next digit (6) from the dividend after 9, then repeat: 96 / 129

Going ahead to step 4:
The number 129 fits into 96 0 times, leaving a remainder of 96.
Use 0 as the next digit of our solution. 
Result so far: 70.0
Subtracting 0 from 96 leaves us with 96.
Fetch the next digit (9) from the dividend, attach it to 96 and continue: 969 / 129

Step 5:
969 divided by 129 is 7 with a remainder of 66.
The number 7 becomes the next digit in our result. 
Result so far: 707.0
If we take 903 away from 969, we end up with 66.
Grab the next digit (4) from the dividend, add it to 66, then carry on: 664 / 129

Advancing to step 6:
When dividing 664 by 129, we get 5 with a remainder of 19.
The next digit of our result is 5. 
Result so far: 7075.0
If we take 645 away from 664, we end up with 19.
Include the next digit (5) from the dividend after 19, then repeat: 195 / 129

Advancing to step 7:
195 divided by 129 is 1 with a remainder of 66.
Write down 1 as next digit of the result. 
Result so far: 70751.0
If we subtract 129 from 195, we get 66.
Take the next digit (4) from the dividend and append it to 66, then repeat: 664 / 129

Advancing to step 8:
If we divide 664 by 129, we get 5 and a remainder of 19.
The next digit of our result is 5. 
Result so far: 707515.0
Subtract 645 from 664 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 9:
If we divide 190 by 129, we get 1 and a remainder of 61.
The number 1 becomes the next digit in our result. 
Result so far: 707515.1
The remainder is 61 after subtracting 129 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 10:
129 goes into 610 4 times with a remainder of 94.
Write down 4 as next digit of the result. 
Result so far: 707515.14
Deduct 516 from 610 and we're left with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Step 11:
129 goes into 940 7 times with a remainder of 37.
The next digit of our result is 7. 
Result so far: 707515.147
Deduct 903 from 940 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 12:
370 divided by 129 is 2 with a remainder of 112.
The next digit of our result is 2. 
Result so far: 707515.1472
Deduct 258 from 370 and we're left with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

On to step 13:
When dividing 1120 by 129, we get 8 with a remainder of 88.
Record the quotient 8 as the next digit in the result. 
Result so far: 707515.14728
Subtracting 1032 from 1120 leaves us with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Advancing to step 14:
880 divided by 129 is 6 with a remainder of 106.
Write down 6 as next digit of the result. 
Result so far: 707515.147286
Subtracting 774 from 880 leaves us with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Advancing to step 15:
129 can be fit into 1060 8 times, resulting in a remainder of 28.
Put 8 as the next digit of the answer. 
Result so far: 707515.1472868
Deduct 1032 from 1060 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 16:
If we divide 280 by 129, we get 2 and a remainder of 22.
The number 2 becomes the next digit in our result. 
Result so far: 707515.14728682
Deduct 258 from 280 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

After the division, we end up with 707515.14728682 and a remainder of 2.2e-08.