We look at the division of 122218 by 28 
The aim is to understand the frequency of 28 in 122218.

On to step 1:
If we divide 1 by 28, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 28

Let's proceed to step 2:
The number 28 fits into 12 0 times, leaving a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Append the next digit (2) from the dividend to 12 and continue with: 122 / 28

Going ahead to step 3:
122 divided by 28 is 4 with a remainder of 10.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 112 from 122 and we're left with 10.
Grab the next digit (2) from the dividend, add it to 10, then carry on: 102 / 28

Moving on to step 4:
28 goes into 102 3 times with a remainder of 18.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
The remainder is 18 after subtracting 84 from 102.
Take the next digit (1) from the dividend and append it to 18, then repeat: 181 / 28

On to step 5:
When dividing 181 by 28, we get 6 with a remainder of 13.
Write down 6 as next digit of the result. 
Result so far: 436.0
Subtract 168 from 181 to get 13.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 28

Let's proceed to step 6:
If we divide 138 by 28, we get 4 and a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 4364.0
The remainder is 26 after subtracting 112 from 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 7:
When dividing 260 by 28, we get 9 with a remainder of 8.
Write down 9 as next digit of the result. 
Result so far: 4364.9
Subtracting 252 from 260 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.

On to step 8:
If we divide 80 by 28, we get 2 and a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 4364.92
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.

Let's proceed to step 9:
If we divide 240 by 28, we get 8 and a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 4364.928
Subtracting 224 from 240 leaves us 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:
The number 28 fits into 160 5 times, leaving a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 4364.9285
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.

Step 11:
The number 28 fits into 200 7 times, leaving a remainder of 4.
The next digit of our result is 7. 
Result so far: 4364.92857
If we take 196 away from 200, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 12:
When dividing 40 by 28, we get 1 with a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 4364.928571
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.

Moving on to step 13:
When dividing 120 by 28, we get 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 4364.9285714
If we take 112 away from 120, we end up 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 14:
28 can be fit into 80 2 times, resulting in a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 4364.92857142
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.

Our division results in 4364.92857142 with a remaining 2.4e-08.