We look at the division of 255799 by 28 
The aim is to understand the frequency of 28 in 255799.

Moving on to step 1:
The number 28 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 28

Let's proceed to step 2:
28 goes into 25 0 times with a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 25, we end up with 25.
Append the next digit (5) from the dividend to 25 and continue with: 255 / 28

Moving on to step 3:
When dividing 255 by 28, we get 9 with a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtract 252 from 255 to get 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 28

Going ahead to step 4:
28 goes into 37 1 times with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 91.0
The remainder is 9 after subtracting 28 from 37.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 28

On to step 5:
When dividing 99 by 28, we get 3 with a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 913.0
The remainder is 15 after subtracting 84 from 99.
Take the next digit (9) from the dividend and append it to 15, then repeat: 159 / 28

Let's proceed to step 6:
The number 28 fits into 159 5 times, leaving a remainder of 19.
Record the quotient 5 as the next digit in the result. 
Result so far: 9135.0
The remainder is 19 after subtracting 140 from 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 7:
28 goes into 190 6 times with a remainder of 22.
Write down 6 as next digit of the result. 
Result so far: 9135.6
The remainder is 22 after subtracting 168 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 8:
28 can be fit into 220 7 times, resulting in a remainder of 24.
Record the quotient 7 as the next digit in the result. 
Result so far: 9135.67
Subtract 196 from 220 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.

Advancing to step 9:
28 goes into 240 8 times with a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 9135.678
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.

Let's proceed to step 10:
28 can be fit into 160 5 times, resulting in a remainder of 20.
The next digit of our result is 5. 
Result so far: 9135.6785
Subtract 140 from 160 to get 20.
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 11:
If we divide 200 by 28, we get 7 and a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 9135.67857
The remainder is 4 after subtracting 196 from 200.
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 12:
If we divide 40 by 28, we get 1 and a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 9135.678571
Subtract 28 from 40 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 13:
28 can be fit into 120 4 times, resulting in a remainder of 8.
The next digit of our result is 4. 
Result so far: 9135.6785714
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.

Advancing to step 14:
80 divided by 28 is 2 with a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 9135.67857142
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.

The final result is 9135.67857142 with a remainder of 2.4e-08.