We divide 617871 by 90
We want to divide 617871 by 90.

Advancing to step 1:
90 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 90

Moving on to step 2:
90 can be fit into 61 0 times, resulting in a remainder of 61.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 61, we end up with 61.
Include the next digit (7) from the dividend after 61, then repeat: 617 / 90

On to step 3:
When dividing 617 by 90, we get 6 with a remainder of 77.
Put 6 as the next digit of the answer. 
Result so far: 6.0
The remainder is 77 after subtracting 540 from 617.
Bring next digit (8) of the dividend behind the 77 and repeat the process: 778 / 90

Going ahead to step 4:
The number 90 fits into 778 8 times, leaving a remainder of 58.
Record the quotient 8 as the next digit in the result. 
Result so far: 68.0
Subtract 720 from 778 to get 58.
Append the next digit (7) from the dividend to 58 and continue with: 587 / 90

Advancing to step 5:
The number 90 fits into 587 6 times, leaving a remainder of 47.
Record the quotient 6 as the next digit in the result. 
Result so far: 686.0
Subtract 540 from 587 to get 47.
Include the next digit (1) from the dividend after 47, then repeat: 471 / 90

On to step 6:
90 can be fit into 471 5 times, resulting in a remainder of 21.
Record the quotient 5 as the next digit in the result. 
Result so far: 6865.0
Subtract 450 from 471 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 7:
When dividing 210 by 90, we get 2 with a remainder of 30.
Write down 2 as next digit of the result. 
Result so far: 6865.2
Deduct 180 from 210 and we're left 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.

On to 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: 6865.23
If we subtract 270 from 300, we 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.

Going ahead to step 9:
90 can be fit into 300 3 times, resulting in a remainder of 30.
Use 3 as the next digit of our solution. 
Result so far: 6865.233
If we subtract 270 from 300, we 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.

The final result is 6865.233 with a remainder of 0.003.