We look at the division of 659662 by 28 
The aim is to understand the frequency of 28 in 659662.

On to step 1:
28 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 28

Let's proceed to step 2:
28 goes into 65 2 times with a remainder of 9.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 56 from 65 leaves us with 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 28

On to step 3:
99 divided by 28 is 3 with a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 23.0
Subtract 84 from 99 to get 15.
Append the next digit (6) from the dividend to 15 and continue with: 156 / 28

Let's proceed to step 4:
156 divided by 28 is 5 with a remainder of 16.
Use 5 as the next digit of our solution. 
Result so far: 235.0
Subtracting 140 from 156 leaves us with 16.
Append the next digit (6) from the dividend to 16 and continue with: 166 / 28

Let's proceed to step 5:
When dividing 166 by 28, we get 5 with a remainder of 26.
Put 5 as the next digit of the answer. 
Result so far: 2355.0
If we take 140 away from 166, we end up with 26.
Take the next digit (2) from the dividend and append it to 26, then repeat: 262 / 28

Advancing to step 6:
The number 28 fits into 262 9 times, leaving a remainder of 10.
Use 9 as the next digit of our solution. 
Result so far: 23559.0
Subtracting 252 from 262 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
The number 28 fits into 100 3 times, leaving a remainder of 16.
Record the quotient 3 as the next digit in the result. 
Result so far: 23559.3
Subtracting 84 from 100 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.

On to step 8:
28 goes into 160 5 times with a remainder of 20.
The next digit of our result is 5. 
Result so far: 23559.35
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.

On to step 9:
When dividing 200 by 28, we get 7 with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 23559.357
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.

Going ahead to step 10:
40 divided by 28 is 1 with a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 23559.3571
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.

Advancing to step 11:
If we divide 120 by 28, we get 4 and a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 23559.35714
The remainder is 8 after subtracting 112 from 120.
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 12:
28 goes into 80 2 times with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 23559.357142
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.

Moving on to step 13:
28 can be fit into 240 8 times, resulting in a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 23559.3571428
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.

Step 14:
When dividing 160 by 28, we get 5 with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 23559.35714285
The remainder is 20 after subtracting 140 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The quotient of the division is 23559.35714285, and the remainder is 2e-08.