Let's divide 861785 by 81
We want to figure out the number of times 861785 can be divided by 81.

On to step 1:
81 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 81

Moving on to step 2:
The number 81 fits into 86 1 times, leaving a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 81 from 86 and we're left with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 81

Going ahead to step 3:
When dividing 51 by 81, we get 0 with a remainder of 51.
The next digit of our result is 0. 
Result so far: 10.0
Subtract 0 from 51 to get 51.
Take the next digit (7) from the dividend and append it to 51, then repeat: 517 / 81

Going ahead to step 4:
The number 81 fits into 517 6 times, leaving a remainder of 31.
Record the quotient 6 as the next digit in the result. 
Result so far: 106.0
Deduct 486 from 517 and we're left with 31.
Fetch the next digit (8) from the dividend, attach it to 31 and continue: 318 / 81

Moving on to step 5:
If we divide 318 by 81, we get 3 and a remainder of 75.
The number 3 becomes the next digit in our result. 
Result so far: 1063.0
If we subtract 243 from 318, we get 75.
Fetch the next digit (5) from the dividend, attach it to 75 and continue: 755 / 81

On to step 6:
81 goes into 755 9 times with a remainder of 26.
The number 9 becomes the next digit in our result. 
Result so far: 10639.0
If we subtract 729 from 755, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 7:
81 can be fit into 260 3 times, resulting in a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 10639.3
If we subtract 243 from 260, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 8:
If we divide 170 by 81, we get 2 and a remainder of 8.
The next digit of our result is 2. 
Result so far: 10639.32
Subtract 162 from 170 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 9:
When dividing 80 by 81, we get 0 with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 10639.32
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 10:
800 divided by 81 is 9 with a remainder of 71.
The next digit of our result is 9. 
Result so far: 10639.3209
The remainder is 71 after subtracting 729 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

On to step 11:
81 can be fit into 710 8 times, resulting in a remainder of 62.
Write down 8 as next digit of the result. 
Result so far: 10639.32098
Subtract 648 from 710 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 12:
81 can be fit into 620 7 times, resulting in a remainder of 53.
Write down 7 as next digit of the result. 
Result so far: 10639.320987
If we subtract 567 from 620, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Moving on to step 13:
530 divided by 81 is 6 with a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 10639.3209876
If we take 486 away from 530, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 14:
81 goes into 440 5 times with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 10639.32098765
The remainder is 35 after subtracting 405 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Our division results in 10639.32098765 with a remaining 3.5e-08.