We're dividing 721997 by 20 
Let's see how many times 20 fits into 721997.

On to step 1:
20 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 20

Going ahead to step 2:
The number 20 fits into 72 3 times, leaving a remainder of 12.
The next digit of our result is 3. 
Result so far: 3.0
If we take 60 away from 72, we end up with 12.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 20

Let's proceed to step 3:
When dividing 121 by 20, we get 6 with a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 36.0
If we take 120 away from 121, we end up with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 20

Going ahead to step 4:
If we divide 19 by 20, we get 0 and a remainder of 19.
The number 0 becomes the next digit in our result. 
Result so far: 360.0
Subtracting 0 from 19 leaves us with 19.
Append the next digit (9) from the dividend to 19 and continue with: 199 / 20

Let's proceed to step 5:
If we divide 199 by 20, we get 9 and a remainder of 19.
Write down 9 as next digit of the result. 
Result so far: 3609.0
Subtract 180 from 199 to get 19.
Bring next digit (7) of the dividend behind the 19 and repeat the process: 197 / 20

On to step 6:
The number 20 fits into 197 9 times, leaving a remainder of 17.
Record the quotient 9 as the next digit in the result. 
Result so far: 36099.0
Subtracting 180 from 197 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 7:
The number 20 fits into 170 8 times, leaving a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 36099.8
If we subtract 160 from 170, 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.

Going ahead to step 8:
100 divided by 20 is 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 36099.85
Subtract 100 from 100 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:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 36099.85
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.

Moving on to step 10:
If we divide 0 by 20, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 36099.85
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.

After the division, we end up with 36099.85 and a remainder of 0.0.