We look at the division of 40223 by 90 
We want to figure out the number of times 40223 can be divided by 90.

Moving on to step 1:
The number 90 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 90

Step 2:
40 divided by 90 is 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 40 and we're left with 40.
Fetch the next digit (2) from the dividend, attach it to 40 and continue: 402 / 90

On to step 3:
402 divided by 90 is 4 with a remainder of 42.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 360 from 402 and we're left with 42.
Bring next digit (2) of the dividend behind the 42 and repeat the process: 422 / 90

On to step 4:
The number 90 fits into 422 4 times, leaving a remainder of 62.
Use 4 as the next digit of our solution. 
Result so far: 44.0
Subtracting 360 from 422 leaves us with 62.
Append the next digit (3) from the dividend to 62 and continue with: 623 / 90

Advancing to step 5:
623 divided by 90 is 6 with a remainder of 83.
Record the quotient 6 as the next digit in the result. 
Result so far: 446.0
If we subtract 540 from 623, we get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Moving on to step 6:
When dividing 830 by 90, we get 9 with a remainder of 20.
Put 9 as the next digit of the answer. 
Result so far: 446.9
Deduct 810 from 830 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.

Let's proceed to step 7:
200 divided by 90 is 2 with a remainder of 20.
The next digit of our result is 2. 
Result so far: 446.92
If we subtract 180 from 200, we get 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 can be fit into 200 2 times, resulting in a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 446.922
The remainder is 20 after subtracting 180 from 200.
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 result is 446.922 with a remainder of 0.002.