We look at the division of 102452 by 81 
We want to divide 102452 by 81.

On to step 1:
81 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 81

Going ahead to step 2:
The number 81 fits into 10 0 times, leaving a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 10, we get 10.
Bring next digit (2) of the dividend behind the 10 and repeat the process: 102 / 81

Moving on to step 3:
81 goes into 102 1 times with a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 81 from 102 to get 21.
Include the next digit (4) from the dividend after 21, then repeat: 214 / 81

Moving on to step 4:
When dividing 214 by 81, we get 2 with a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we subtract 162 from 214, we get 52.
Fetch the next digit (5) from the dividend, attach it to 52 and continue: 525 / 81

Going ahead to step 5:
525 divided by 81 is 6 with a remainder of 39.
The next digit of our result is 6. 
Result so far: 126.0
If we take 486 away from 525, we end up with 39.
Include the next digit (2) from the dividend after 39, then repeat: 392 / 81

Going ahead to step 6:
When dividing 392 by 81, we get 4 with a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 1264.0
If we subtract 324 from 392, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 7:
81 can be fit into 680 8 times, resulting in a remainder of 32.
The next digit of our result is 8. 
Result so far: 1264.8
Subtract 648 from 680 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 8:
The number 81 fits into 320 3 times, leaving a remainder of 77.
Put 3 as the next digit of the answer. 
Result so far: 1264.83
If we take 243 away from 320, we end up with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Going ahead to step 9:
81 can be fit into 770 9 times, resulting in a remainder of 41.
Use 9 as the next digit of our solution. 
Result so far: 1264.839
The remainder is 41 after subtracting 729 from 770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 10:
81 goes into 410 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 1264.8395
Subtract 405 from 410 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 11:
If we divide 50 by 81, we get 0 and a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 1264.8395
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 12:
The number 81 fits into 500 6 times, leaving a remainder of 14.
Use 6 as the next digit of our solution. 
Result so far: 1264.839506
The remainder is 14 after subtracting 486 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 13:
When dividing 140 by 81, we get 1 with a remainder of 59.
Use 1 as the next digit of our solution. 
Result so far: 1264.8395061
If we subtract 81 from 140, we get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 14:
81 goes into 590 7 times with a remainder of 23.
Put 7 as the next digit of the answer. 
Result so far: 1264.83950617
The remainder is 23 after subtracting 567 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

The final result is 1264.83950617 with a remainder of 2.3e-08.