We look at the division of 86818860 by 810 
Let's see how many times 810 fits into 86818860.

Let's proceed to step 1:
The number 810 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 810

Let's proceed to step 2:
The number 810 fits into 86 0 times, leaving a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Include the next digit (8) from the dividend after 86, then repeat: 868 / 810

On to step 3:
The number 810 fits into 868 1 times, leaving a remainder of 58.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 810 away from 868, we end up with 58.
Take the next digit (1) from the dividend and append it to 58, then repeat: 581 / 810

Going ahead to step 4:
The number 810 fits into 581 0 times, leaving a remainder of 581.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 581 and we're left with 581.
Fetch the next digit (8) from the dividend, attach it to 581 and continue: 5818 / 810

Step 5:
810 can be fit into 5818 7 times, resulting in a remainder of 148.
Record the quotient 7 as the next digit in the result. 
Result so far: 107.0
If we take 5670 away from 5818, we end up with 148.
Append the next digit (8) from the dividend to 148 and continue with: 1488 / 810

Step 6:
810 goes into 1488 1 times with a remainder of 678.
Write down 1 as next digit of the result. 
Result so far: 1071.0
Subtract 810 from 1488 to get 678.
Append the next digit (6) from the dividend to 678 and continue with: 6786 / 810

Moving on to step 7:
The number 810 fits into 6786 8 times, leaving a remainder of 306.
Put 8 as the next digit of the answer. 
Result so far: 10718.0
Deduct 6480 from 6786 and we're left with 306.
Append the next digit (0) from the dividend to 306 and continue with: 3060 / 810

Step 8:
The number 810 fits into 3060 3 times, leaving a remainder of 630.
The number 3 becomes the next digit in our result. 
Result so far: 107183.0
The remainder is 630 after subtracting 2430 from 3060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Step 9:
When dividing 6300 by 810, we get 7 with a remainder of 630.
Record the quotient 7 as the next digit in the result. 
Result so far: 107183.7
If we subtract 5670 from 6300, we get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Going ahead to step 10:
6300 divided by 810 is 7 with a remainder of 630.
The number 7 becomes the next digit in our result. 
Result so far: 107183.77
Subtracting 5670 from 6300 leaves us with 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Our division results in 107183.77 with a remaining 0.63.