129742 divided by 81 
We want to divide 129742 by 81.

Going ahead to step 1:
If we divide 1 by 81, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 81

Going ahead to step 2:
81 can be fit into 12 0 times, resulting in a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Take the next digit (9) from the dividend and append it to 12, then repeat: 129 / 81

Moving on to step 3:
When dividing 129 by 81, we get 1 with a remainder of 48.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 81 from 129 leaves us with 48.
Include the next digit (7) from the dividend after 48, then repeat: 487 / 81

Going ahead to step 4:
The number 81 fits into 487 6 times, leaving a remainder of 1.
The next digit of our result is 6. 
Result so far: 16.0
The remainder is 1 after subtracting 486 from 487.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 81

Step 5:
81 can be fit into 14 0 times, resulting in a remainder of 14.
Record the quotient 0 as the next digit in the result. 
Result so far: 160.0
If we subtract 0 from 14, we get 14.
Append the next digit (2) from the dividend to 14 and continue with: 142 / 81

Going ahead to step 6:
142 divided by 81 is 1 with a remainder of 61.
Write down 1 as next digit of the result. 
Result so far: 1601.0
The remainder is 61 after subtracting 81 from 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 7:
If we divide 610 by 81, we get 7 and a remainder of 43.
The next digit of our result is 7. 
Result so far: 1601.7
If we subtract 567 from 610, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Moving on to step 8:
If we divide 430 by 81, we get 5 and a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 1601.75
If we take 405 away from 430, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 9:
250 divided by 81 is 3 with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 1601.753
Deduct 243 from 250 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 10:
If we divide 70 by 81, we get 0 and a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 1601.753
The remainder is 70 after subtracting 0 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 11:
If we divide 700 by 81, we get 8 and a remainder of 52.
The number 8 becomes the next digit in our result. 
Result so far: 1601.75308
If we take 648 away from 700, 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 12:
When dividing 520 by 81, we get 6 with a remainder of 34.
Use 6 as the next digit of our solution. 
Result so far: 1601.753086
Deduct 486 from 520 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 13:
When dividing 340 by 81, we get 4 with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 1601.7530864
If we take 324 away from 340, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 14:
When dividing 160 by 81, we get 1 with a remainder of 79.
Record the quotient 1 as the next digit in the result. 
Result so far: 1601.75308641
Deduct 81 from 160 and we're left with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

The final result is 1601.75308641 with a remainder of 7.9e-08.