28192243 divided by 20 
The aim is to understand the frequency of 20 in 28192243.

Let's proceed to step 1:
When dividing 2 by 20, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 20

Moving on to step 2:
The number 20 fits into 28 1 times, leaving a remainder of 8.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 20 from 28 to get 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 20

Moving on to step 3:
The number 20 fits into 81 4 times, leaving a remainder of 1.
Put 4 as the next digit of the answer. 
Result so far: 14.0
If we take 80 away from 81, we end up with 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 20

Going ahead to step 4:
When dividing 19 by 20, we get 0 with a remainder of 19.
Write down 0 as next digit of the result. 
Result so far: 140.0
Deduct 0 from 19 and we're left with 19.
Fetch the next digit (2) from the dividend, attach it to 19 and continue: 192 / 20

Let's proceed to step 5:
20 goes into 192 9 times with a remainder of 12.
The number 9 becomes the next digit in our result. 
Result so far: 1409.0
If we take 180 away from 192, we end up with 12.
Take the next digit (2) from the dividend and append it to 12, then repeat: 122 / 20

Going ahead to step 6:
If we divide 122 by 20, we get 6 and a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 14096.0
The remainder is 2 after subtracting 120 from 122.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 20

Moving on to step 7:
If we divide 24 by 20, we get 1 and a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 140961.0
If we subtract 20 from 24, we get 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 20

Step 8:
If we divide 43 by 20, we get 2 and a remainder of 3.
Use 2 as the next digit of our solution. 
Result so far: 1409612.0
Subtracting 40 from 43 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 9:
The number 20 fits into 30 1 times, leaving a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 1409612.1
Subtract 20 from 30 to 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.

Advancing to step 10:
20 can be fit into 100 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 1409612.15
The remainder is 0 after subtracting 100 from 100.
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:
0 divided by 20 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1409612.15
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.

Moving on to step 12:
0 divided by 20 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1409612.15
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.

Our division results in 1409612.15 with a remaining 0.0.