We're dividing 90422 by 18 
Let's see how many times 18 fits into 90422.

Going ahead to step 1:
18 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 18

Let's proceed to step 2:
If we divide 90 by 18, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 5.0
Deduct 90 from 90 and we're left with 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 18

Step 3:
The number 18 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 50.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 18

Step 4:
If we divide 42 by 18, we get 2 and a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 502.0
If we subtract 36 from 42, we get 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 18

Going ahead to step 5:
If we divide 62 by 18, we get 3 and a remainder of 8.
The number 3 becomes the next digit in our result. 
Result so far: 5023.0
The remainder is 8 after subtracting 54 from 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 6:
18 can be fit into 80 4 times, resulting in a remainder of 8.
The next digit of our result is 4. 
Result so far: 5023.4
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 7:
80 divided by 18 is 4 with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 5023.44
Subtract 72 from 80 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

After the division, we end up with 5023.44 and a remainder of 0.008.