We're dividing 578566 by 20 
We want to figure out the number of times 578566 can be divided by 20.

Advancing to step 1:
20 goes into 5 0 times with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 20

Let's proceed to step 2:
If we divide 57 by 20, we get 2 and a remainder of 17.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 17 after subtracting 40 from 57.
Grab the next digit (8) from the dividend, add it to 17, then carry on: 178 / 20

Step 3:
20 can be fit into 178 8 times, resulting in a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 28.0
If we subtract 160 from 178, we get 18.
Fetch the next digit (5) from the dividend, attach it to 18 and continue: 185 / 20

Moving on to step 4:
The number 20 fits into 185 9 times, leaving a remainder of 5.
The next digit of our result is 9. 
Result so far: 289.0
Deduct 180 from 185 and we're left with 5.
Grab the next digit (6) from the dividend, add it to 5, then carry on: 56 / 20

Step 5:
56 divided by 20 is 2 with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 2892.0
If we subtract 40 from 56, we get 16.
Fetch the next digit (6) from the dividend, attach it to 16 and continue: 166 / 20

Step 6:
166 divided by 20 is 8 with a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 28928.0
Subtract 160 from 166 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
60 divided by 20 is 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 28928.3
If we take 60 away from 60, we end up 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.

On to step 8:
When dividing 0 by 20, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 28928.3
If we take 0 away from 0, we end up 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 9:
The number 20 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 28928.3
The remainder is 0 after subtracting 0 from 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 28928.3 and a remainder of 0.0.