198866 ÷ 28 
The aim is to understand the frequency of 28 in 198866.

Let's proceed to step 1:
When dividing 1 by 28, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 28

Advancing to step 2:
If we divide 19 by 28, we get 0 and a remainder of 19.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 19 and we're left with 19.
Include the next digit (8) from the dividend after 19, then repeat: 198 / 28

Moving on to step 3:
198 divided by 28 is 7 with a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we subtract 196 from 198, we get 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 28

Going ahead to step 4:
If we divide 28 by 28, we get 1 and a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 71.0
Subtract 28 from 28 to get 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 28

Step 5:
When dividing 6 by 28, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 710.0
If we subtract 0 from 6, we get 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 28

On to step 6:
28 can be fit into 66 2 times, resulting in a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 7102.0
Subtracting 56 from 66 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.

Advancing to step 7:
If we divide 100 by 28, we get 3 and a remainder of 16.
Write down 3 as next digit of the result. 
Result so far: 7102.3
Subtract 84 from 100 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.

Let's proceed to step 8:
If we divide 160 by 28, we get 5 and a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 7102.35
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.

On to step 9:
28 can be fit into 200 7 times, resulting in a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 7102.357
Deduct 196 from 200 and we're left 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.

Let's proceed to step 10:
28 goes into 40 1 times with a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 7102.3571
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.

Moving on to step 11:
If we divide 120 by 28, we get 4 and a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 7102.35714
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.

Step 12:
The number 28 fits into 80 2 times, leaving a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 7102.357142
The remainder is 24 after subtracting 56 from 80.
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:
When dividing 240 by 28, we get 8 with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 7102.3571428
The remainder is 16 after subtracting 224 from 240.
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 14:
28 goes into 160 5 times with a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 7102.35714285
Deduct 140 from 160 and we're left 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.

The final outcome is 7102.35714285, with a leftover of 2e-08.