We're dividing 856851 by 81 
We want to figure out the number of times 856851 can be divided by 81.

Moving on to step 1:
8 divided by 81 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 81

On to step 2:
The number 81 fits into 85 1 times, leaving a remainder of 4.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 81 from 85 leaves us with 4.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 81

Let's proceed to step 3:
81 goes into 46 0 times with a remainder of 46.
The next digit of our result is 0. 
Result so far: 10.0
Deduct 0 from 46 and we're left with 46.
Bring next digit (8) of the dividend behind the 46 and repeat the process: 468 / 81

Advancing to step 4:
If we divide 468 by 81, we get 5 and a remainder of 63.
The number 5 becomes the next digit in our result. 
Result so far: 105.0
If we take 405 away from 468, we end up with 63.
Take the next digit (5) from the dividend and append it to 63, then repeat: 635 / 81

On to step 5:
The number 81 fits into 635 7 times, leaving a remainder of 68.
The next digit of our result is 7. 
Result so far: 1057.0
Subtract 567 from 635 to get 68.
Include the next digit (1) from the dividend after 68, then repeat: 681 / 81

Going ahead to step 6:
If we divide 681 by 81, we get 8 and a remainder of 33.
The next digit of our result is 8. 
Result so far: 10578.0
Subtract 648 from 681 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 7:
81 can be fit into 330 4 times, resulting in a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 10578.4
Subtracting 324 from 330 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
81 can be fit into 60 0 times, resulting in a remainder of 60.
The next digit of our result is 0. 
Result so far: 10578.4
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 9:
When dividing 600 by 81, we get 7 with a remainder of 33.
Write down 7 as next digit of the result. 
Result so far: 10578.407
Subtracting 567 from 600 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 10:
The number 81 fits into 330 4 times, leaving a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 10578.4074
Deduct 324 from 330 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 11:
The number 81 fits into 60 0 times, leaving a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 10578.4074
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 12:
81 goes into 600 7 times with a remainder of 33.
Use 7 as the next digit of our solution. 
Result so far: 10578.407407
Subtracting 567 from 600 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 13:
When dividing 330 by 81, we get 4 with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 10578.4074074
Subtract 324 from 330 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 14:
The number 81 fits into 60 0 times, leaving a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 10578.4074074
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

After the division, we end up with 10578.4074074 and a remainder of 6e-08.