864077 divided by 90 
We want to figure out the number of times 864077 can be divided by 90.

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
If we take 0 away from 8, we end up with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 90

On to step 2:
If we divide 86 by 90, we get 0 and a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Bring next digit (4) of the dividend behind the 86 and repeat the process: 864 / 90

Moving on to step 3:
If we divide 864 by 90, we get 9 and a remainder of 54.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtracting 810 from 864 leaves us with 54.
Append the next digit (0) from the dividend to 54 and continue with: 540 / 90

Advancing to step 4:
90 goes into 540 6 times with a remainder of 0.
The next digit of our result is 6. 
Result so far: 96.0
The remainder is 0 after subtracting 540 from 540.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 90

On to step 5:
When dividing 7 by 90, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 960.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 90

Moving on to step 6:
77 divided by 90 is 0 with a remainder of 77.
The number 0 becomes the next digit in our result. 
Result so far: 9600.0
If we take 0 away from 77, we end up with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Going ahead to step 7:
The number 90 fits into 770 8 times, leaving a remainder of 50.
Write down 8 as next digit of the result. 
Result so far: 9600.8
If we take 720 away from 770, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 8:
If we divide 500 by 90, we get 5 and a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 9600.85
If we take 450 away from 500, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 9:
90 can be fit into 500 5 times, resulting in a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 9600.855
If we take 450 away from 500, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 9600.855 with a remainder of 0.005.