We look at the division of 880851 by 28 
The aim is to understand the frequency of 28 in 880851.

Step 1:
28 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (8) from the dividend to 8 and continue with: 88 / 28

On to step 2:
88 divided by 28 is 3 with a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 4 after subtracting 84 from 88.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 28

Let's proceed to step 3:
28 can be fit into 40 1 times, resulting in a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
Subtracting 28 from 40 leaves us with 12.
Bring next digit (8) of the dividend behind the 12 and repeat the process: 128 / 28

Step 4:
128 divided by 28 is 4 with a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 314.0
Subtracting 112 from 128 leaves us with 16.
Include the next digit (5) from the dividend after 16, then repeat: 165 / 28

Step 5:
If we divide 165 by 28, we get 5 and a remainder of 25.
The next digit of our result is 5. 
Result so far: 3145.0
Subtracting 140 from 165 leaves us with 25.
Fetch the next digit (1) from the dividend, attach it to 25 and continue: 251 / 28

On to step 6:
When dividing 251 by 28, we get 8 with a remainder of 27.
Put 8 as the next digit of the answer. 
Result so far: 31458.0
Subtract 224 from 251 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 7:
28 goes into 270 9 times with a remainder of 18.
The number 9 becomes the next digit in our result. 
Result so far: 31458.9
The remainder is 18 after subtracting 252 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 8:
28 goes into 180 6 times with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 31458.96
The remainder is 12 after subtracting 168 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 9:
120 divided by 28 is 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 31458.964
Deduct 112 from 120 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.

On to step 10:
28 goes into 80 2 times with a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 31458.9642
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.

Advancing to step 11:
When dividing 240 by 28, we get 8 with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 31458.96428
Subtract 224 from 240 to 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 12:
28 goes into 160 5 times with a remainder of 20.
The next digit of our result is 5. 
Result so far: 31458.964285
Subtracting 140 from 160 leaves us with 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 13:
28 goes into 200 7 times with a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 31458.9642857
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.

Let's proceed to step 14:
When dividing 40 by 28, we get 1 with a remainder of 12.
The next digit of our result is 1. 
Result so far: 31458.96428571
Deduct 28 from 40 and we're left 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.

After the division, we end up with 31458.96428571 and a remainder of 1.2e-08.