Let's divide 726640 by 20
The aim is to understand the frequency of 20 in 726640.

Moving on to step 1:
The number 20 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 20

Advancing to step 2:
20 can be fit into 72 3 times, resulting in a remainder of 12.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 60 from 72 and we're left with 12.
Include the next digit (6) from the dividend after 12, then repeat: 126 / 20

Let's proceed to step 3:
The number 20 fits into 126 6 times, leaving a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 36.0
The remainder is 6 after subtracting 120 from 126.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 20

Moving on to step 4:
20 goes into 66 3 times with a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 363.0
The remainder is 6 after subtracting 60 from 66.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 20

Moving on to step 5:
20 goes into 64 3 times with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 3633.0
If we take 60 away from 64, we end up with 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 20

On to step 6:
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: 36332.0
Deduct 40 from 40 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.

Going ahead to step 7:
0 divided by 20 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 36332.0
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.

Going ahead to step 8:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 36332.0
Subtract 0 from 0 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.

Our division results in 36332.0 with a remaining 0.0.