We look at the division of 820838 by 90 
Let's see how many times 90 fits into 820838.

Moving on to step 1:
The number 90 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 90

Step 2:
When dividing 82 by 90, we get 0 with a remainder of 82.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 82 and we're left with 82.
Take the next digit (0) from the dividend and append it to 82, then repeat: 820 / 90

Step 3:
The number 90 fits into 820 9 times, leaving a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we subtract 810 from 820, we get 10.
Take the next digit (8) from the dividend and append it to 10, then repeat: 108 / 90

Moving on to step 4:
If we divide 108 by 90, we get 1 and a remainder of 18.
The next digit of our result is 1. 
Result so far: 91.0
Subtracting 90 from 108 leaves us with 18.
Fetch the next digit (3) from the dividend, attach it to 18 and continue: 183 / 90

Going ahead to step 5:
183 divided by 90 is 2 with a remainder of 3.
Record the quotient 2 as the next digit in the result. 
Result so far: 912.0
If we take 180 away from 183, we end up with 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 90

Step 6:
When dividing 38 by 90, we get 0 with a remainder of 38.
Put 0 as the next digit of the answer. 
Result so far: 9120.0
If we take 0 away from 38, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 7:
If we divide 380 by 90, we get 4 and a remainder of 20.
The next digit of our result is 4. 
Result so far: 9120.4
Deduct 360 from 380 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 8:
90 goes into 200 2 times with a remainder of 20.
Record the quotient 2 as the next digit in the result. 
Result so far: 9120.42
Deduct 180 from 200 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
200 divided by 90 is 2 with a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 9120.422
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 9120.422, with a leftover of 0.002.