13242 divided by 28 
The aim is to understand the frequency of 28 in 13242.

Step 1:
If we divide 1 by 28, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 28

Advancing to step 2:
If we divide 13 by 28, we get 0 and a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Include the next digit (2) from the dividend after 13, then repeat: 132 / 28

Let's proceed to step 3:
When dividing 132 by 28, we get 4 with a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 112 away from 132, we end up with 20.
Append the next digit (4) from the dividend to 20 and continue with: 204 / 28

Advancing to step 4:
When dividing 204 by 28, we get 7 with a remainder of 8.
The number 7 becomes the next digit in our result. 
Result so far: 47.0
Subtract 196 from 204 to get 8.
Append the next digit (2) from the dividend to 8 and continue with: 82 / 28

Let's proceed to step 5:
82 divided by 28 is 2 with a remainder of 26.
The next digit of our result is 2. 
Result so far: 472.0
Deduct 56 from 82 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 6:
28 can be fit into 260 9 times, resulting in a remainder of 8.
The next digit of our result is 9. 
Result so far: 472.9
Deduct 252 from 260 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 7:
The number 28 fits into 80 2 times, leaving a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 472.92
Deduct 56 from 80 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 8:
28 goes into 240 8 times with a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 472.928
If we take 224 away from 240, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 9:
If we divide 160 by 28, we get 5 and a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 472.9285
The remainder is 20 after subtracting 140 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 10:
The number 28 fits into 200 7 times, leaving a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 472.92857
If we subtract 196 from 200, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 11:
28 goes into 40 1 times with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 472.928571
The remainder is 12 after subtracting 28 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 12:
28 can be fit into 120 4 times, resulting in a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 472.9285714
If we take 112 away from 120, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 13:
When dividing 80 by 28, we get 2 with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 472.92857142
If we subtract 56 from 80, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

After the division, we end up with 472.92857142 and a remainder of 2.4e-08.