We're dividing 54060452 by 20 
The aim is to understand the frequency of 20 in 54060452.

Going ahead to step 1:
The number 20 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 20

On to step 2:
The number 20 fits into 54 2 times, leaving a remainder of 14.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 40 from 54 and we're left with 14.
Fetch the next digit (0) from the dividend, attach it to 14 and continue: 140 / 20

Step 3:
20 can be fit into 140 7 times, resulting in a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 27.0
If we take 140 away from 140, we end up with 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 20

Going ahead to step 4:
20 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 270.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (0) from the dividend and append it to 6, then repeat: 60 / 20

Going ahead to step 5:
When dividing 60 by 20, we get 3 with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 2703.0
If we subtract 60 from 60, we get 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 20

Advancing to step 6:
If we divide 4 by 20, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 27030.0
If we subtract 0 from 4, we get 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 20

Step 7:
20 can be fit into 45 2 times, resulting in a remainder of 5.
Record the quotient 2 as the next digit in the result. 
Result so far: 270302.0
If we subtract 40 from 45, we get 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 20

Going ahead to step 8:
20 can be fit into 52 2 times, resulting in a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 2703022.0
If we take 40 away from 52, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 9:
If we divide 120 by 20, we get 6 and a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 2703022.6
Subtract 120 from 120 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.

On to step 10:
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: 2703022.6
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.

Let's proceed to step 11:
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: 2703022.6
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.

The final outcome is 2703022.6, with a leftover of 0.0.