We're dividing 720579 by 20 
We want to figure out the number of times 720579 can be divided by 20.

Advancing to step 1:
20 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 20

Moving on to step 2:
When dividing 72 by 20, we get 3 with a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 60 from 72 to get 12.
Include the next digit (0) from the dividend after 12, then repeat: 120 / 20

On to step 3:
120 divided by 20 is 6 with a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 36.0
Subtract 120 from 120 to get 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 20

On to step 4:
The number 20 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 360.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 20

Going ahead to step 5:
20 goes into 57 2 times with a remainder of 17.
Use 2 as the next digit of our solution. 
Result so far: 3602.0
If we take 40 away from 57, we end up with 17.
Grab the next digit (9) from the dividend, add it to 17, then carry on: 179 / 20

Moving on to step 6:
20 goes into 179 8 times with a remainder of 19.
Record the quotient 8 as the next digit in the result. 
Result so far: 36028.0
If we subtract 160 from 179, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 7:
20 can be fit into 190 9 times, resulting in a remainder of 10.
The number 9 becomes the next digit in our result. 
Result so far: 36028.9
If we take 180 away from 190, 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.

Step 8:
20 goes into 100 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 36028.95
If we take 100 away from 100, 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.

Moving on to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 36028.95
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 10:
When dividing 0 by 20, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 36028.95
Deduct 0 from 0 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.

The quotient of the division is 36028.95, and the remainder is 0.0.