89391042 ÷ 129 
We want to divide 89391042 by 129.

Advancing to step 1:
129 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 129

On to step 2:
When dividing 89 by 129, we get 0 with a remainder of 89.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 89 and we're left with 89.
Bring next digit (3) of the dividend behind the 89 and repeat the process: 893 / 129

Step 3:
If we divide 893 by 129, we get 6 and a remainder of 119.
The next digit of our result is 6. 
Result so far: 6.0
If we subtract 774 from 893, we get 119.
Include the next digit (9) from the dividend after 119, then repeat: 1199 / 129

Going ahead to step 4:
129 goes into 1199 9 times with a remainder of 38.
Use 9 as the next digit of our solution. 
Result so far: 69.0
The remainder is 38 after subtracting 1161 from 1199.
Append the next digit (1) from the dividend to 38 and continue with: 381 / 129

Step 5:
When dividing 381 by 129, we get 2 with a remainder of 123.
Write down 2 as next digit of the result. 
Result so far: 692.0
Deduct 258 from 381 and we're left with 123.
Append the next digit (0) from the dividend to 123 and continue with: 1230 / 129

Let's proceed to step 6:
129 can be fit into 1230 9 times, resulting in a remainder of 69.
Record the quotient 9 as the next digit in the result. 
Result so far: 6929.0
Subtract 1161 from 1230 to get 69.
Append the next digit (4) from the dividend to 69 and continue with: 694 / 129

Step 7:
When dividing 694 by 129, we get 5 with a remainder of 49.
Use 5 as the next digit of our solution. 
Result so far: 69295.0
If we subtract 645 from 694, we get 49.
Take the next digit (2) from the dividend and append it to 49, then repeat: 492 / 129

On to step 8:
129 can be fit into 492 3 times, resulting in a remainder of 105.
Put 3 as the next digit of the answer. 
Result so far: 692953.0
Deduct 387 from 492 and we're left with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Advancing to step 9:
If we divide 1050 by 129, we get 8 and a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 692953.8
If we take 1032 away from 1050, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 10:
If we divide 180 by 129, we get 1 and a remainder of 51.
Put 1 as the next digit of the answer. 
Result so far: 692953.81
The remainder is 51 after subtracting 129 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 11:
510 divided by 129 is 3 with a remainder of 123.
Use 3 as the next digit of our solution. 
Result so far: 692953.813
If we take 387 away from 510, we end up with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Moving on to step 12:
129 goes into 1230 9 times with a remainder of 69.
The number 9 becomes the next digit in our result. 
Result so far: 692953.8139
Deduct 1161 from 1230 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

On to step 13:
When dividing 690 by 129, we get 5 with a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 692953.81395
If we take 645 away from 690, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 14:
If we divide 450 by 129, we get 3 and a remainder of 63.
Write down 3 as next digit of the result. 
Result so far: 692953.813953
The remainder is 63 after subtracting 387 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Moving on to step 15:
129 can be fit into 630 4 times, resulting in a remainder of 114.
Write down 4 as next digit of the result. 
Result so far: 692953.8139534
If we take 516 away from 630, we end up with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Let's proceed to step 16:
1140 divided by 129 is 8 with a remainder of 108.
Record the quotient 8 as the next digit in the result. 
Result so far: 692953.81395348
The remainder is 108 after subtracting 1032 from 1140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

The final outcome is 692953.81395348, with a leftover of 1.08e-07.