Let's divide 870688 by 28
The aim is to understand the frequency of 28 in 870688.

Step 1:
When dividing 8 by 28, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 28

Going ahead to step 2:
If we divide 87 by 28, we get 3 and a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 84 from 87, we get 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 28

On to step 3:
28 can be fit into 30 1 times, resulting in a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 31.0
Deduct 28 from 30 and we're left with 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 28

Going ahead to step 4:
If we divide 26 by 28, we get 0 and a remainder of 26.
Use 0 as the next digit of our solution. 
Result so far: 310.0
Deduct 0 from 26 and we're left with 26.
Fetch the next digit (8) from the dividend, attach it to 26 and continue: 268 / 28

Moving on to step 5:
28 can be fit into 268 9 times, resulting in a remainder of 16.
The next digit of our result is 9. 
Result so far: 3109.0
The remainder is 16 after subtracting 252 from 268.
Include the next digit (8) from the dividend after 16, then repeat: 168 / 28

On to step 6:
If we divide 168 by 28, we get 6 and a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 31096.0
Subtract 168 from 168 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
If we divide 0 by 28, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 31096.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
The number 28 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 31096.0
Subtracting 0 from 0 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.

In conclusion, the division gives 31096.0 with a balance of 0.0.