69128938 ÷ 129 
We want to divide 69128938 by 129.

Moving on to step 1:
The number 129 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (9) from the dividend, add it to 6, then carry on: 69 / 129

Advancing to step 2:
129 can be fit into 69 0 times, resulting in a remainder of 69.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 69, we get 69.
Fetch the next digit (1) from the dividend, attach it to 69 and continue: 691 / 129

Step 3:
The number 129 fits into 691 5 times, leaving a remainder of 46.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtract 645 from 691 to get 46.
Fetch the next digit (2) from the dividend, attach it to 46 and continue: 462 / 129

Going ahead to step 4:
129 goes into 462 3 times with a remainder of 75.
The number 3 becomes the next digit in our result. 
Result so far: 53.0
Deduct 387 from 462 and we're left with 75.
Fetch the next digit (8) from the dividend, attach it to 75 and continue: 758 / 129

On to step 5:
129 can be fit into 758 5 times, resulting in a remainder of 113.
The next digit of our result is 5. 
Result so far: 535.0
Subtracting 645 from 758 leaves us with 113.
Fetch the next digit (9) from the dividend, attach it to 113 and continue: 1139 / 129

Advancing to step 6:
The number 129 fits into 1139 8 times, leaving a remainder of 107.
Write down 8 as next digit of the result. 
Result so far: 5358.0
If we subtract 1032 from 1139, we get 107.
Grab the next digit (3) from the dividend, add it to 107, then carry on: 1073 / 129

Going ahead to step 7:
The number 129 fits into 1073 8 times, leaving a remainder of 41.
The number 8 becomes the next digit in our result. 
Result so far: 53588.0
If we subtract 1032 from 1073, we get 41.
Take the next digit (8) from the dividend and append it to 41, then repeat: 418 / 129

Moving on to step 8:
418 divided by 129 is 3 with a remainder of 31.
The number 3 becomes the next digit in our result. 
Result so far: 535883.0
Subtract 387 from 418 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 9:
129 goes into 310 2 times with a remainder of 52.
The next digit of our result is 2. 
Result so far: 535883.2
If we take 258 away from 310, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 10:
If we divide 520 by 129, we get 4 and a remainder of 4.
The next digit of our result is 4. 
Result so far: 535883.24
If we subtract 516 from 520, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 11:
129 goes into 40 0 times with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 535883.24
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 12:
When dividing 400 by 129, we get 3 with a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 535883.2403
If we take 387 away from 400, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 13:
130 divided by 129 is 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 535883.24031
The remainder is 1 after subtracting 129 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 14:
If we divide 10 by 129, we get 0 and a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 535883.24031
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 15:
129 goes into 100 0 times with a remainder of 100.
Record the quotient 0 as the next digit in the result. 
Result so far: 535883.24031
Subtracting 0 from 100 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final outcome is 535883.24031, with a leftover of 1e-06.