We divide 864897 by 90
Let's see how many times 90 fits into 864897.

Advancing to step 1:
If we divide 8 by 90, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
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 / 90

Going ahead to step 2:
90 can be fit into 86 0 times, resulting in a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Append the next digit (4) from the dividend to 86 and continue with: 864 / 90

Going ahead to step 3:
The number 90 fits into 864 9 times, leaving a remainder of 54.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we subtract 810 from 864, we get 54.
Include the next digit (8) from the dividend after 54, then repeat: 548 / 90

Step 4:
The number 90 fits into 548 6 times, leaving a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 96.0
If we take 540 away from 548, we end up with 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 90

Let's proceed to step 5:
The number 90 fits into 89 0 times, leaving a remainder of 89.
Write down 0 as next digit of the result. 
Result so far: 960.0
If we subtract 0 from 89, we get 89.
Append the next digit (7) from the dividend to 89 and continue with: 897 / 90

Advancing to step 6:
If we divide 897 by 90, we get 9 and a remainder of 87.
The next digit of our result is 9. 
Result so far: 9609.0
Subtract 810 from 897 to get 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

On to step 7:
90 can be fit into 870 9 times, resulting in a remainder of 60.
Write down 9 as next digit of the result. 
Result so far: 9609.9
Subtracting 810 from 870 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 8:
600 divided by 90 is 6 with a remainder of 60.
Use 6 as the next digit of our solution. 
Result so far: 9609.96
If we subtract 540 from 600, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 9:
90 goes into 600 6 times with a remainder of 60.
Use 6 as the next digit of our solution. 
Result so far: 9609.966
If we subtract 540 from 600, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The quotient of the division is 9609.966, and the remainder is 0.006.