We're dividing 854779 by 90 
We want to divide 854779 by 90.

On 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 (5) from the dividend and append it to 8, then repeat: 85 / 90

Advancing to step 2:
The number 90 fits into 85 0 times, leaving a remainder of 85.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 85 to get 85.
Grab the next digit (4) from the dividend, add it to 85, then carry on: 854 / 90

Moving on to step 3:
If we divide 854 by 90, we get 9 and a remainder of 44.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Deduct 810 from 854 and we're left with 44.
Append the next digit (7) from the dividend to 44 and continue with: 447 / 90

On to step 4:
447 divided by 90 is 4 with a remainder of 87.
Use 4 as the next digit of our solution. 
Result so far: 94.0
If we subtract 360 from 447, we get 87.
Fetch the next digit (7) from the dividend, attach it to 87 and continue: 877 / 90

Going ahead to step 5:
877 divided by 90 is 9 with a remainder of 67.
Use 9 as the next digit of our solution. 
Result so far: 949.0
If we take 810 away from 877, we end up with 67.
Grab the next digit (9) from the dividend, add it to 67, then carry on: 679 / 90

Step 6:
90 can be fit into 679 7 times, resulting in a remainder of 49.
Put 7 as the next digit of the answer. 
Result so far: 9497.0
The remainder is 49 after subtracting 630 from 679.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

On to step 7:
The number 90 fits into 490 5 times, leaving a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 9497.5
Deduct 450 from 490 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 8:
The number 90 fits into 400 4 times, leaving a remainder of 40.
The next digit of our result is 4. 
Result so far: 9497.54
Deduct 360 from 400 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 9:
The number 90 fits into 400 4 times, leaving a remainder of 40.
Write down 4 as next digit of the result. 
Result so far: 9497.544
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final result is 9497.544 with a remainder of 0.004.