Let's divide 84823970 by 90
We're looking to find how many times 90 goes into 84823970.

Going ahead to step 1:
If we divide 8 by 90, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 90

Moving on to step 2:
The number 90 fits into 84 0 times, leaving a remainder of 84.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 84, we end up with 84.
Take the next digit (8) from the dividend and append it to 84, then repeat: 848 / 90

Step 3:
The number 90 fits into 848 9 times, leaving a remainder of 38.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we subtract 810 from 848, we get 38.
Take the next digit (2) from the dividend and append it to 38, then repeat: 382 / 90

Going ahead to step 4:
90 can be fit into 382 4 times, resulting in a remainder of 22.
Use 4 as the next digit of our solution. 
Result so far: 94.0
Subtracting 360 from 382 leaves us with 22.
Fetch the next digit (3) from the dividend, attach it to 22 and continue: 223 / 90

On to step 5:
223 divided by 90 is 2 with a remainder of 43.
The next digit of our result is 2. 
Result so far: 942.0
Subtract 180 from 223 to get 43.
Grab the next digit (9) from the dividend, add it to 43, then carry on: 439 / 90

Advancing to step 6:
The number 90 fits into 439 4 times, leaving a remainder of 79.
Record the quotient 4 as the next digit in the result. 
Result so far: 9424.0
Deduct 360 from 439 and we're left with 79.
Take the next digit (7) from the dividend and append it to 79, then repeat: 797 / 90

Going ahead to step 7:
When dividing 797 by 90, we get 8 with a remainder of 77.
Use 8 as the next digit of our solution. 
Result so far: 94248.0
Subtracting 720 from 797 leaves us with 77.
Bring next digit (0) of the dividend behind the 77 and repeat the process: 770 / 90

Advancing to step 8:
The number 90 fits into 770 8 times, leaving a remainder of 50.
Record the quotient 8 as the next digit in the result. 
Result so far: 942488.0
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 9:
500 divided by 90 is 5 with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 942488.5
The remainder is 50 after subtracting 450 from 500.
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 10:
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: 942488.55
Subtract 450 from 500 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

In conclusion, the division gives 942488.55 with a balance of 0.05.