We look at the division of 574362 by 20 
The aim is to understand the frequency of 20 in 574362.

Going ahead to step 1:
If we divide 5 by 20, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (7) from the dividend, attach it to 5 and continue: 57 / 20

On to step 2:
57 divided by 20 is 2 with a remainder of 17.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 40 from 57 to get 17.
Grab the next digit (4) from the dividend, add it to 17, then carry on: 174 / 20

Going ahead to step 3:
When dividing 174 by 20, we get 8 with a remainder of 14.
Put 8 as the next digit of the answer. 
Result so far: 28.0
If we take 160 away from 174, we end up with 14.
Bring next digit (3) of the dividend behind the 14 and repeat the process: 143 / 20

Step 4:
143 divided by 20 is 7 with a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 287.0
Subtracting 140 from 143 leaves us with 3.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 20

Advancing to step 5:
When dividing 36 by 20, we get 1 with a remainder of 16.
The next digit of our result is 1. 
Result so far: 2871.0
Subtracting 20 from 36 leaves us with 16.
Grab the next digit (2) from the dividend, add it to 16, then carry on: 162 / 20

Advancing to step 6:
162 divided by 20 is 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 28718.0
The remainder is 2 after subtracting 160 from 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 7:
If we divide 20 by 20, we get 1 and a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 28718.1
If we take 20 away from 20, 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 8:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 28718.1
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.

Going ahead to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 28718.1
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.

The quotient of the division is 28718.1, and the remainder is 0.0.