We look at the division of 851744 by 81 
Let's see how many times 81 fits into 851744.

On to step 1:
When dividing 8 by 81, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 81

Let's proceed to step 2:
81 can be fit into 85 1 times, resulting in a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 4 after subtracting 81 from 85.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 81

Let's proceed to step 3:
The number 81 fits into 41 0 times, leaving a remainder of 41.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
The remainder is 41 after subtracting 0 from 41.
Include the next digit (7) from the dividend after 41, then repeat: 417 / 81

Advancing to step 4:
The number 81 fits into 417 5 times, leaving a remainder of 12.
The number 5 becomes the next digit in our result. 
Result so far: 105.0
The remainder is 12 after subtracting 405 from 417.
Include the next digit (4) from the dividend after 12, then repeat: 124 / 81

Advancing to step 5:
If we divide 124 by 81, we get 1 and a remainder of 43.
The next digit of our result is 1. 
Result so far: 1051.0
The remainder is 43 after subtracting 81 from 124.
Fetch the next digit (4) from the dividend, attach it to 43 and continue: 434 / 81

Step 6:
The number 81 fits into 434 5 times, leaving a remainder of 29.
The number 5 becomes the next digit in our result. 
Result so far: 10515.0
Deduct 405 from 434 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 7:
The number 81 fits into 290 3 times, leaving a remainder of 47.
Record the quotient 3 as the next digit in the result. 
Result so far: 10515.3
The remainder is 47 after subtracting 243 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 8:
When dividing 470 by 81, we get 5 with a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 10515.35
Subtract 405 from 470 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 9:
81 goes into 650 8 times with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 10515.358
The remainder is 2 after subtracting 648 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 10:
81 goes into 20 0 times with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 10515.358
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 11:
If we divide 200 by 81, we get 2 and a remainder of 38.
The next digit of our result is 2. 
Result so far: 10515.35802
If we subtract 162 from 200, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 12:
When dividing 380 by 81, we get 4 with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 10515.358024
Deduct 324 from 380 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 13:
81 goes into 560 6 times with a remainder of 74.
Put 6 as the next digit of the answer. 
Result so far: 10515.3580246
Deduct 486 from 560 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 14:
740 divided by 81 is 9 with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 10515.35802469
Subtract 729 from 740 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Our division results in 10515.35802469 with a remaining 1.1e-08.