We divide 556090 by 20
We want to figure out the number of times 556090 can be divided by 20.

On to step 1:
20 can be fit into 5 0 times, resulting in a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 20

Moving on to step 2:
If we divide 55 by 20, we get 2 and a remainder of 15.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 15 after subtracting 40 from 55.
Fetch the next digit (6) from the dividend, attach it to 15 and continue: 156 / 20

Moving on to step 3:
20 goes into 156 7 times with a remainder of 16.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
Deduct 140 from 156 and we're left with 16.
Append the next digit (0) from the dividend to 16 and continue with: 160 / 20

Going ahead to step 4:
If we divide 160 by 20, we get 8 and a remainder of 0.
The next digit of our result is 8. 
Result so far: 278.0
If we subtract 160 from 160, we get 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 20

Let's proceed to step 5:
The number 20 fits into 9 0 times, leaving a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 2780.0
If we take 0 away from 9, we end up with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 20

Let's proceed to step 6:
20 can be fit into 90 4 times, resulting in a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 27804.0
If we subtract 80 from 90, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
20 goes into 100 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 27804.5
Deduct 100 from 100 and we're left 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.

Let's proceed to step 8:
0 divided by 20 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 27804.5
Subtract 0 from 0 to 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:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 27804.5
Subtract 0 from 0 to 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.

Our division results in 27804.5 with a remaining 0.0.