We look at the division of 129300 by 81 
We want to divide 129300 by 81.

Advancing to step 1:
81 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 81

On to step 2:
12 divided by 81 is 0 with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Fetch the next digit (9) from the dividend, attach it to 12 and continue: 129 / 81

Advancing to step 3:
129 divided by 81 is 1 with a remainder of 48.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 81 from 129 to get 48.
Fetch the next digit (3) from the dividend, attach it to 48 and continue: 483 / 81

Advancing to step 4:
The number 81 fits into 483 5 times, leaving a remainder of 78.
Write down 5 as next digit of the result. 
Result so far: 15.0
Deduct 405 from 483 and we're left with 78.
Bring next digit (0) of the dividend behind the 78 and repeat the process: 780 / 81

Moving on to step 5:
When dividing 780 by 81, we get 9 with a remainder of 51.
The next digit of our result is 9. 
Result so far: 159.0
If we take 729 away from 780, we end up with 51.
Append the next digit (0) from the dividend to 51 and continue with: 510 / 81

Going ahead to step 6:
If we divide 510 by 81, we get 6 and a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 1596.0
If we take 486 away from 510, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 7:
The number 81 fits into 240 2 times, leaving a remainder of 78.
The next digit of our result is 2. 
Result so far: 1596.2
Subtracting 162 from 240 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 8:
The number 81 fits into 780 9 times, leaving a remainder of 51.
Use 9 as the next digit of our solution. 
Result so far: 1596.29
If we take 729 away from 780, we end up with 51.
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 9:
81 can be fit into 510 6 times, resulting in a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 1596.296
Subtracting 486 from 510 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 10:
When dividing 240 by 81, we get 2 with a remainder of 78.
Write down 2 as next digit of the result. 
Result so far: 1596.2962
Subtracting 162 from 240 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 11:
When dividing 780 by 81, we get 9 with a remainder of 51.
The number 9 becomes the next digit in our result. 
Result so far: 1596.29629
If we subtract 729 from 780, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 12:
When dividing 510 by 81, we get 6 with a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 1596.296296
The remainder is 24 after subtracting 486 from 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 13:
When dividing 240 by 81, we get 2 with a remainder of 78.
Write down 2 as next digit of the result. 
Result so far: 1596.2962962
Deduct 162 from 240 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 14:
The number 81 fits into 780 9 times, leaving a remainder of 51.
Record the quotient 9 as the next digit in the result. 
Result so far: 1596.29629629
If we subtract 729 from 780, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

The final outcome is 1596.29629629, with a leftover of 5.1e-08.