We look at the division of 52741484 by 20 
The aim is to understand the frequency of 20 in 52741484.

Let's proceed to step 1:
If we divide 5 by 20, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 20

Let's proceed to step 2:
The number 20 fits into 52 2 times, leaving a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 40 from 52 leaves us with 12.
Take the next digit (7) from the dividend and append it to 12, then repeat: 127 / 20

Advancing to step 3:
20 can be fit into 127 6 times, resulting in a remainder of 7.
The next digit of our result is 6. 
Result so far: 26.0
The remainder is 7 after subtracting 120 from 127.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 20

Let's proceed to step 4:
If we divide 74 by 20, we get 3 and a remainder of 14.
Record the quotient 3 as the next digit in the result. 
Result so far: 263.0
If we subtract 60 from 74, we get 14.
Fetch the next digit (1) from the dividend, attach it to 14 and continue: 141 / 20

Step 5:
141 divided by 20 is 7 with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 2637.0
The remainder is 1 after subtracting 140 from 141.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 20

Step 6:
20 can be fit into 14 0 times, resulting in a remainder of 14.
Put 0 as the next digit of the answer. 
Result so far: 26370.0
Subtract 0 from 14 to get 14.
Bring next digit (8) of the dividend behind the 14 and repeat the process: 148 / 20

Going ahead to step 7:
20 goes into 148 7 times with a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 263707.0
Deduct 140 from 148 and we're left with 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 20

Let's proceed to step 8:
When dividing 84 by 20, we get 4 with a remainder of 4.
The next digit of our result is 4. 
Result so far: 2637074.0
The remainder is 4 after subtracting 80 from 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
The number 20 fits into 40 2 times, leaving a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 2637074.2
Subtracting 40 from 40 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 10:
20 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 2637074.2
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.

Moving on to step 11:
When dividing 0 by 20, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 2637074.2
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.

The quotient of the division is 2637074.2, and the remainder is 0.0.