Let's divide 90855 by 20
Let's see how many times 20 fits into 90855.

On to step 1:
The number 20 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 20

Let's proceed to step 2:
When dividing 90 by 20, we get 4 with a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 80 from 90 leaves us with 10.
Take the next digit (8) from the dividend and append it to 10, then repeat: 108 / 20

Let's proceed to step 3:
The number 20 fits into 108 5 times, leaving a remainder of 8.
The next digit of our result is 5. 
Result so far: 45.0
Subtract 100 from 108 to get 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 20

Step 4:
20 goes into 85 4 times with a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 454.0
If we subtract 80 from 85, we get 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 20

Going ahead to step 5:
20 goes into 55 2 times with a remainder of 15.
The next digit of our result is 2. 
Result so far: 4542.0
The remainder is 15 after subtracting 40 from 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 6:
When dividing 150 by 20, we get 7 with a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 4542.7
If we take 140 away from 150, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 7:
If we divide 100 by 20, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 4542.75
If we subtract 100 from 100, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
When dividing 0 by 20, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 4542.75
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
0 divided by 20 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 4542.75
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 4542.75 and a remainder of 0.0.