We look at the division of 722473 by 20 
Let's see how many times 20 fits into 722473.

Step 1:
The number 20 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our 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

Step 2:
The number 20 fits into 72 3 times, leaving a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 60 from 72 leaves us with 12.
Bring next digit (2) of the dividend behind the 12 and repeat the process: 122 / 20

Advancing to step 3:
122 divided by 20 is 6 with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 36.0
If we subtract 120 from 122, we get 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 20

Going ahead to step 4:
If we divide 24 by 20, we get 1 and a remainder of 4.
The next digit of our result is 1. 
Result so far: 361.0
Subtracting 20 from 24 leaves us with 4.
Append the next digit (7) from the dividend to 4 and continue with: 47 / 20

On to step 5:
If we divide 47 by 20, we get 2 and a remainder of 7.
The number 2 becomes the next digit in our result. 
Result so far: 3612.0
Subtracting 40 from 47 leaves us with 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 20

Going ahead to step 6:
73 divided by 20 is 3 with a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 36123.0
Subtracting 60 from 73 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 7:
If we divide 130 by 20, we get 6 and a remainder of 10.
The next digit of our result is 6. 
Result so far: 36123.6
If we subtract 120 from 130, 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:
If we divide 100 by 20, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 36123.65
If we subtract 100 from 100, 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.

Let's proceed to step 9:
0 divided by 20 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 36123.65
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.

Let's proceed to step 10:
20 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 36123.65
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.

The final result is 36123.65 with a remainder of 0.0.