We divide 871626 by 90
We want to figure out the number of times 871626 can be divided by 90.

Advancing to step 1:
90 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 90

Let's proceed to step 2:
The number 90 fits into 87 0 times, leaving a remainder of 87.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 87, we end up with 87.
Fetch the next digit (1) from the dividend, attach it to 87 and continue: 871 / 90

Going ahead to step 3:
When dividing 871 by 90, we get 9 with a remainder of 61.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Deduct 810 from 871 and we're left with 61.
Fetch the next digit (6) from the dividend, attach it to 61 and continue: 616 / 90

Going ahead to step 4:
The number 90 fits into 616 6 times, leaving a remainder of 76.
Write down 6 as next digit of the result. 
Result so far: 96.0
If we take 540 away from 616, we end up with 76.
Include the next digit (2) from the dividend after 76, then repeat: 762 / 90

Step 5:
The number 90 fits into 762 8 times, leaving a remainder of 42.
The number 8 becomes the next digit in our result. 
Result so far: 968.0
The remainder is 42 after subtracting 720 from 762.
Bring next digit (6) of the dividend behind the 42 and repeat the process: 426 / 90

On to step 6:
The number 90 fits into 426 4 times, leaving a remainder of 66.
Put 4 as the next digit of the answer. 
Result so far: 9684.0
If we subtract 360 from 426, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 7:
660 divided by 90 is 7 with a remainder of 30.
Write down 7 as next digit of the result. 
Result so far: 9684.7
If we take 630 away from 660, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
When dividing 300 by 90, we get 3 with a remainder of 30.
The number 3 becomes the next digit in our result. 
Result so far: 9684.73
Subtract 270 from 300 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 9:
300 divided by 90 is 3 with a remainder of 30.
The next digit of our result is 3. 
Result so far: 9684.733
The remainder is 30 after subtracting 270 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final outcome is 9684.733, with a leftover of 0.003.