We look at the division of 366443 by 28 
The aim is to understand the frequency of 28 in 366443.

Let's proceed to step 1:
When dividing 3 by 28, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (6) from the dividend after 3, then repeat: 36 / 28

Moving on to step 2:
The number 28 fits into 36 1 times, leaving a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 28 from 36 and we're left with 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 28

Let's proceed to step 3:
The number 28 fits into 86 3 times, leaving a remainder of 2.
The next digit of our result is 3. 
Result so far: 13.0
If we subtract 84 from 86, we get 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 28

Moving on to step 4:
24 divided by 28 is 0 with a remainder of 24.
Record the quotient 0 as the next digit in the result. 
Result so far: 130.0
Deduct 0 from 24 and we're left with 24.
Take the next digit (4) from the dividend and append it to 24, then repeat: 244 / 28

Going ahead to step 5:
28 goes into 244 8 times with a remainder of 20.
Use 8 as the next digit of our solution. 
Result so far: 1308.0
Subtracting 224 from 244 leaves us with 20.
Take the next digit (3) from the dividend and append it to 20, then repeat: 203 / 28

On to step 6:
The number 28 fits into 203 7 times, leaving a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 13087.0
Deduct 196 from 203 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
28 can be fit into 70 2 times, resulting in a remainder of 14.
Use 2 as the next digit of our solution. 
Result so far: 13087.2
Deduct 56 from 70 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 8:
28 goes into 140 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 13087.25
Deduct 140 from 140 and we're left 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.

Let's proceed to step 9:
If we divide 0 by 28, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 13087.25
Subtract 0 from 0 to 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 10:
0 divided by 28 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 13087.25
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 13087.25, with a leftover of 0.0.