We look at the division of 724407 by 20 
We want to divide 724407 by 20.

Step 1:
20 can be fit into 7 0 times, resulting in a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 20

Advancing to step 2:
20 goes into 72 3 times with a remainder of 12.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 12 after subtracting 60 from 72.
Bring next digit (4) of the dividend behind the 12 and repeat the process: 124 / 20

Let's proceed to step 3:
124 divided by 20 is 6 with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 36.0
The remainder is 4 after subtracting 120 from 124.
Grab the next digit (4) from the dividend, add it to 4, then carry on: 44 / 20

Let's proceed to step 4:
20 can be fit into 44 2 times, resulting in a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 362.0
If we subtract 40 from 44, we get 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 20

Going ahead to step 5:
If we divide 40 by 20, we get 2 and a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 3622.0
Deduct 40 from 40 and we're left with 0.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 20

On to step 6:
When dividing 7 by 20, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 36220.0
Subtract 0 from 7 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
20 goes into 70 3 times with a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 36220.3
The remainder is 10 after subtracting 60 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
If we divide 100 by 20, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 36220.35
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.

Let's proceed to step 9:
20 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 36220.35
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.
Record the quotient 0 as the next digit in the result. 
Result so far: 36220.35
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 36220.35 and a remainder of 0.0.