We look at the division of 13214 by 28 
The aim is to understand the frequency of 28 in 13214.

Moving on to step 1:
The number 28 fits into 1 0 times, leaving a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 28

Advancing to step 2:
If we divide 13 by 28, we get 0 and a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Grab the next digit (2) from the dividend, add it to 13, then carry on: 132 / 28

Step 3:
If we divide 132 by 28, we get 4 and a remainder of 20.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 112 away from 132, we end up with 20.
Include the next digit (1) from the dividend after 20, then repeat: 201 / 28

Let's proceed to step 4:
28 can be fit into 201 7 times, resulting in a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
If we subtract 196 from 201, we get 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 28

Let's proceed to step 5:
When dividing 54 by 28, we get 1 with a remainder of 26.
Write down 1 as next digit of the result. 
Result so far: 471.0
If we take 28 away from 54, we end up 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.

On to step 6:
The number 28 fits into 260 9 times, leaving a remainder of 8.
The number 9 becomes the next digit in our result. 
Result so far: 471.9
The remainder is 8 after subtracting 252 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 7:
28 goes into 80 2 times with a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 471.92
Subtracting 56 from 80 leaves us 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:
When dividing 240 by 28, we get 8 with a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 471.928
If we subtract 224 from 240, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 9:
When dividing 160 by 28, we get 5 with a remainder of 20.
The next digit of our result is 5. 
Result so far: 471.9285
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.

Advancing to step 10:
28 goes into 200 7 times with a remainder of 4.
The next digit of our result is 7. 
Result so far: 471.92857
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.

Advancing to step 11:
28 can be fit into 40 1 times, resulting in a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 471.928571
If we take 28 away from 40, 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.

Step 12:
When dividing 120 by 28, we get 4 with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 471.9285714
If we subtract 112 from 120, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 13:
28 goes into 80 2 times with a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 471.92857142
Subtract 56 from 80 to 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.

The final result is 471.92857142 with a remainder of 2.4e-08.