812885 ÷ 81 
Let's see how many times 81 fits into 812885.

Step 1:
81 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 81

Moving on to step 2:
81 can be fit into 81 1 times, resulting in a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 0 after subtracting 81 from 81.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 81

Let's proceed to step 3:
The number 81 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Deduct 0 from 2 and we're left with 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 81

Going ahead to step 4:
When dividing 28 by 81, we get 0 with a remainder of 28.
Put 0 as the next digit of the answer. 
Result so far: 100.0
Deduct 0 from 28 and we're left with 28.
Fetch the next digit (8) from the dividend, attach it to 28 and continue: 288 / 81

On to step 5:
If we divide 288 by 81, we get 3 and a remainder of 45.
The number 3 becomes the next digit in our result. 
Result so far: 1003.0
If we subtract 243 from 288, we get 45.
Take the next digit (5) from the dividend and append it to 45, then repeat: 455 / 81

Advancing to step 6:
455 divided by 81 is 5 with a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 10035.0
If we take 405 away from 455, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 7:
81 goes into 500 6 times with a remainder of 14.
Use 6 as the next digit of our solution. 
Result so far: 10035.6
Deduct 486 from 500 and we're left with 14.
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 8:
If we divide 140 by 81, we get 1 and a remainder of 59.
The number 1 becomes the next digit in our result. 
Result so far: 10035.61
Subtracting 81 from 140 leaves us with 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 9:
81 can be fit into 590 7 times, resulting in a remainder of 23.
The next digit of our result is 7. 
Result so far: 10035.617
If we subtract 567 from 590, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 10:
230 divided by 81 is 2 with a remainder of 68.
The number 2 becomes the next digit in our result. 
Result so far: 10035.6172
Deduct 162 from 230 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 11:
When dividing 680 by 81, we get 8 with a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 10035.61728
Subtracting 648 from 680 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 12:
81 goes into 320 3 times with a remainder of 77.
Write down 3 as next digit of the result. 
Result so far: 10035.617283
The remainder is 77 after subtracting 243 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Moving on to step 13:
770 divided by 81 is 9 with a remainder of 41.
The number 9 becomes the next digit in our result. 
Result so far: 10035.6172839
If we take 729 away from 770, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 14:
If we divide 410 by 81, we get 5 and a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 10035.61728395
Deduct 405 from 410 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

After the division, we end up with 10035.61728395 and a remainder of 5e-09.