We're dividing 688824 by 30 
The aim is to understand the frequency of 30 in 688824.

On to step 1:
30 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 30

Going ahead to step 2:
30 can be fit into 68 2 times, resulting in a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 60 from 68 to get 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 30

Advancing to step 3:
30 goes into 88 2 times with a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 22.0
Deduct 60 from 88 and we're left with 28.
Bring next digit (8) of the dividend behind the 28 and repeat the process: 288 / 30

Let's proceed to step 4:
The number 30 fits into 288 9 times, leaving a remainder of 18.
Use 9 as the next digit of our solution. 
Result so far: 229.0
Subtract 270 from 288 to get 18.
Grab the next digit (2) from the dividend, add it to 18, then carry on: 182 / 30

Moving on to step 5:
30 goes into 182 6 times with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 2296.0
Subtracting 180 from 182 leaves us with 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 30

Going ahead to step 6:
If we divide 24 by 30, we get 0 and a remainder of 24.
The next digit of our result is 0. 
Result so far: 22960.0
If we subtract 0 from 24, 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 7:
30 can be fit into 240 8 times, resulting in a remainder of 0.
The next digit of our result is 8. 
Result so far: 22960.8
Subtract 240 from 240 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 8:
The number 30 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 22960.8
If we take 0 away from 0, we end up 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.

Step 9:
30 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 22960.8
Subtract 0 from 0 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.

After the division, we end up with 22960.8 and a remainder of 0.0.