We look at the division of 554233 by 28 
The aim is to understand the frequency of 28 in 554233.

Going ahead to step 1:
When dividing 5 by 28, we get 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 28

Going ahead to step 2:
If we divide 55 by 28, we get 1 and a remainder of 27.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 28 from 55 and we're left with 27.
Include the next digit (4) from the dividend after 27, then repeat: 274 / 28

Going ahead to step 3:
When dividing 274 by 28, we get 9 with a remainder of 22.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
If we take 252 away from 274, we end up with 22.
Grab the next digit (2) from the dividend, add it to 22, then carry on: 222 / 28

Step 4:
222 divided by 28 is 7 with a remainder of 26.
The number 7 becomes the next digit in our result. 
Result so far: 197.0
The remainder is 26 after subtracting 196 from 222.
Include the next digit (3) from the dividend after 26, then repeat: 263 / 28

On to step 5:
28 goes into 263 9 times with a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 1979.0
The remainder is 11 after subtracting 252 from 263.
Grab the next digit (3) from the dividend, add it to 11, then carry on: 113 / 28

On to step 6:
28 goes into 113 4 times with a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 19794.0
Subtract 112 from 113 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
28 can be fit into 10 0 times, resulting in a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 19794.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
28 can be fit into 100 3 times, resulting in a remainder of 16.
The next digit of our result is 3. 
Result so far: 19794.03
If we take 84 away from 100, 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 9:
If we divide 160 by 28, we get 5 and a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 19794.035
If we take 140 away from 160, we end up 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.

Going ahead to step 10:
200 divided by 28 is 7 with a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 19794.0357
Subtract 196 from 200 to 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.

Going ahead to step 11:
When dividing 40 by 28, we get 1 with a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 19794.03571
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.

Let's proceed to step 12:
28 can be fit into 120 4 times, resulting in a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 19794.035714
Subtracting 112 from 120 leaves us 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.

Let's proceed to step 13:
80 divided by 28 is 2 with a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 19794.0357142
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.

Moving on to step 14:
The number 28 fits into 240 8 times, leaving a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 19794.03571428
Deduct 224 from 240 and we're left 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.

The final result is 19794.03571428 with a remainder of 1.6e-08.