We look at the division of 681264 by 28 
The aim is to understand the frequency of 28 in 681264.

Step 1:
If we divide 6 by 28, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 28

Moving on to step 2:
If we divide 68 by 28, we get 2 and a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 56 from 68 and we're left with 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 28

Moving on to step 3:
28 can be fit into 121 4 times, resulting in a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 24.0
If we subtract 112 from 121, we get 9.
Bring next digit (2) of the dividend behind the 9 and repeat the process: 92 / 28

Step 4:
The number 28 fits into 92 3 times, leaving a remainder of 8.
Write down 3 as next digit of the result. 
Result so far: 243.0
Subtract 84 from 92 to get 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 28

Going ahead to step 5:
The number 28 fits into 86 3 times, leaving a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 2433.0
The remainder is 2 after subtracting 84 from 86.
Include the next digit (4) from the dividend after 2, then repeat: 24 / 28

Going ahead to step 6:
28 can be fit into 24 0 times, resulting in a remainder of 24.
Write down 0 as next digit of the result. 
Result so far: 24330.0
Subtract 0 from 24 to 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 7:
28 goes into 240 8 times with a remainder of 16.
The next digit of our result is 8. 
Result so far: 24330.8
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.

Step 8:
28 goes into 160 5 times with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 24330.85
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.

Moving 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: 24330.857
If we subtract 196 from 200, we 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.

Let's proceed to step 10:
If we divide 40 by 28, we get 1 and a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 24330.8571
If we subtract 28 from 40, we get 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.
The next digit of our result is 4. 
Result so far: 24330.85714
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 12:
28 can be fit into 80 2 times, resulting in a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 24330.857142
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.

Advancing to step 13:
28 goes into 240 8 times with a remainder of 16.
The next digit of our result is 8. 
Result so far: 24330.8571428
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.

Moving on to step 14:
28 goes into 160 5 times with a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 24330.85714285
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 result is 24330.85714285 with a remainder of 2e-08.