We look at the division of 80858357 by 855 
We want to figure out the number of times 80858357 can be divided by 855.

Advancing to step 1:
855 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 855

Moving on to step 2:
When dividing 80 by 855, we get 0 with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Bring next digit (8) of the dividend behind the 80 and repeat the process: 808 / 855

Advancing to step 3:
When dividing 808 by 855, we get 0 with a remainder of 808.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 808 after subtracting 0 from 808.
Grab the next digit (5) from the dividend, add it to 808, then carry on: 8085 / 855

Advancing to step 4:
855 can be fit into 8085 9 times, resulting in a remainder of 390.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtracting 7695 from 8085 leaves us with 390.
Grab the next digit (8) from the dividend, add it to 390, then carry on: 3908 / 855

Moving on to step 5:
When dividing 3908 by 855, we get 4 with a remainder of 488.
Record the quotient 4 as the next digit in the result. 
Result so far: 94.0
The remainder is 488 after subtracting 3420 from 3908.
Grab the next digit (3) from the dividend, add it to 488, then carry on: 4883 / 855

Advancing to step 6:
855 goes into 4883 5 times with a remainder of 608.
The next digit of our result is 5. 
Result so far: 945.0
If we take 4275 away from 4883, we end up with 608.
Grab the next digit (5) from the dividend, add it to 608, then carry on: 6085 / 855

Going ahead to step 7:
The number 855 fits into 6085 7 times, leaving a remainder of 100.
Use 7 as the next digit of our solution. 
Result so far: 9457.0
Subtracting 5985 from 6085 leaves us with 100.
Fetch the next digit (7) from the dividend, attach it to 100 and continue: 1007 / 855

On to step 8:
1007 divided by 855 is 1 with a remainder of 152.
Write down 1 as next digit of the result. 
Result so far: 94571.0
If we subtract 855 from 1007, we get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Let's proceed to step 9:
When dividing 1520 by 855, we get 1 with a remainder of 665.
Put 1 as the next digit of the answer. 
Result so far: 94571.1
Subtracting 855 from 1520 leaves us with 665.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6650, and continue the process.

Advancing to step 10:
6650 divided by 855 is 7 with a remainder of 665.
Use 7 as the next digit of our solution. 
Result so far: 94571.17
Deduct 5985 from 6650 and we're left with 665.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6650, and continue the process.

On to step 11:
The number 855 fits into 6650 7 times, leaving a remainder of 665.
Use 7 as the next digit of our solution. 
Result so far: 94571.177
The remainder is 665 after subtracting 5985 from 6650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6650, and continue the process.

The final result is 94571.177 with a remainder of 0.0665.