We're dividing 866765 by 81 
We want to divide 866765 by 81.

Step 1:
81 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 81

Step 2:
When dividing 86 by 81, we get 1 with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 81 from 86 to get 5.
Bring next digit (6) of the dividend behind the 5 and repeat the process: 56 / 81

Moving on to step 3:
81 goes into 56 0 times with a remainder of 56.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Deduct 0 from 56 and we're left with 56.
Append the next digit (7) from the dividend to 56 and continue with: 567 / 81

Advancing to step 4:
81 can be fit into 567 7 times, resulting in a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 107.0
If we subtract 567 from 567, we get 0.
Include the next digit (6) from the dividend after 0, then repeat: 6 / 81

Step 5:
If we divide 6 by 81, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 1070.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 81

Let's proceed to step 6:
If we divide 65 by 81, we get 0 and a remainder of 65.
Write down 0 as next digit of the result. 
Result so far: 10700.0
Subtract 0 from 65 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.

Step 7:
The number 81 fits into 650 8 times, leaving a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 10700.8
Deduct 648 from 650 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
81 can be fit into 20 0 times, resulting in a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 10700.8
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 9:
The number 81 fits into 200 2 times, leaving a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 10700.802
Subtracting 162 from 200 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 10:
380 divided by 81 is 4 with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 10700.8024
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.

Moving on to step 11:
560 divided by 81 is 6 with a remainder of 74.
Put 6 as the next digit of the answer. 
Result so far: 10700.80246
If we take 486 away from 560, we end up 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.

Going ahead to step 12:
If we divide 740 by 81, we get 9 and a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 10700.802469
Subtracting 729 from 740 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 13:
The number 81 fits into 110 1 times, leaving a remainder of 29.
The next digit of our result is 1. 
Result so far: 10700.8024691
If we subtract 81 from 110, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 14:
81 goes into 290 3 times with a remainder of 47.
The number 3 becomes the next digit in our result. 
Result so far: 10700.80246913
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.

Our division results in 10700.80246913 with a remaining 4.7e-08.