86707991 divided by 871 
We're looking to find how many times 871 goes into 86707991.

Moving on to step 1:
When dividing 8 by 871, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 871

Let's proceed to step 2:
If we divide 86 by 871, we get 0 and a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Grab the next digit (7) from the dividend, add it to 86, then carry on: 867 / 871

Let's proceed to step 3:
The number 871 fits into 867 0 times, leaving a remainder of 867.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 867, we get 867.
Bring next digit (0) of the dividend behind the 867 and repeat the process: 8670 / 871

Moving on to step 4:
The number 871 fits into 8670 9 times, leaving a remainder of 831.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtracting 7839 from 8670 leaves us with 831.
Fetch the next digit (7) from the dividend, attach it to 831 and continue: 8317 / 871

Step 5:
If we divide 8317 by 871, we get 9 and a remainder of 478.
The next digit of our result is 9. 
Result so far: 99.0
Subtracting 7839 from 8317 leaves us with 478.
Fetch the next digit (9) from the dividend, attach it to 478 and continue: 4789 / 871

Moving on to step 6:
871 can be fit into 4789 5 times, resulting in a remainder of 434.
Record the quotient 5 as the next digit in the result. 
Result so far: 995.0
Deduct 4355 from 4789 and we're left with 434.
Append the next digit (9) from the dividend to 434 and continue with: 4349 / 871

On to step 7:
When dividing 4349 by 871, we get 4 with a remainder of 865.
Record the quotient 4 as the next digit in the result. 
Result so far: 9954.0
The remainder is 865 after subtracting 3484 from 4349.
Bring next digit (1) of the dividend behind the 865 and repeat the process: 8651 / 871

Advancing to step 8:
871 can be fit into 8651 9 times, resulting in a remainder of 812.
Write down 9 as next digit of the result. 
Result so far: 99549.0
If we subtract 7839 from 8651, we get 812.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8120, and continue the process.

Let's proceed to step 9:
8120 divided by 871 is 9 with a remainder of 281.
Use 9 as the next digit of our solution. 
Result so far: 99549.9
If we take 7839 away from 8120, we end up with 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

On to step 10:
When dividing 2810 by 871, we get 3 with a remainder of 197.
The next digit of our result is 3. 
Result so far: 99549.93
If we take 2613 away from 2810, we end up with 197.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

Step 11:
If we divide 1970 by 871, we get 2 and a remainder of 228.
Use 2 as the next digit of our solution. 
Result so far: 99549.932
Subtract 1742 from 1970 to get 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Moving on to step 12:
871 can be fit into 2280 2 times, resulting in a remainder of 538.
Write down 2 as next digit of the result. 
Result so far: 99549.9322
The remainder is 538 after subtracting 1742 from 2280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

Our division results in 99549.9322 with a remaining 0.00538.