We look at the division of 346689 by 28 
The aim is to understand the frequency of 28 in 346689.

Going ahead to step 1:
28 can be fit into 3 0 times, resulting in a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 28

Advancing to step 2:
34 divided by 28 is 1 with a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 6 after subtracting 28 from 34.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 28

Advancing to step 3:
When dividing 66 by 28, we get 2 with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we subtract 56 from 66, we get 10.
Take the next digit (6) from the dividend and append it to 10, then repeat: 106 / 28

Going ahead to step 4:
If we divide 106 by 28, we get 3 and a remainder of 22.
The number 3 becomes the next digit in our result. 
Result so far: 123.0
Subtracting 84 from 106 leaves us with 22.
Bring next digit (8) of the dividend behind the 22 and repeat the process: 228 / 28

Let's proceed to step 5:
28 goes into 228 8 times with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 1238.0
The remainder is 4 after subtracting 224 from 228.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 28

Step 6:
28 goes into 49 1 times with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 12381.0
Deduct 28 from 49 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 7:
210 divided by 28 is 7 with a remainder of 14.
Record the quotient 7 as the next digit in the result. 
Result so far: 12381.7
If we subtract 196 from 210, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 8:
If we divide 140 by 28, we get 5 and a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 12381.75
Subtracting 140 from 140 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
The number 28 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 12381.75
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
If we divide 0 by 28, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 12381.75
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 12381.75 with a remainder of 0.0.