We look at the division of 404882 by 30 
The aim is to understand the frequency of 30 in 404882.

On to step 1:
30 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 30

Advancing to step 2:
If we divide 40 by 30, we get 1 and a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 30 away from 40, we end up with 10.
Take the next digit (4) from the dividend and append it to 10, then repeat: 104 / 30

Step 3:
104 divided by 30 is 3 with a remainder of 14.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we take 90 away from 104, we end up with 14.
Fetch the next digit (8) from the dividend, attach it to 14 and continue: 148 / 30

Step 4:
148 divided by 30 is 4 with a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 134.0
Deduct 120 from 148 and we're left with 28.
Fetch the next digit (8) from the dividend, attach it to 28 and continue: 288 / 30

On to step 5:
288 divided by 30 is 9 with a remainder of 18.
The number 9 becomes the next digit in our result. 
Result so far: 1349.0
If we subtract 270 from 288, we get 18.
Append the next digit (2) from the dividend to 18 and continue with: 182 / 30

Step 6:
When dividing 182 by 30, we get 6 with a remainder of 2.
The next digit of our result is 6. 
Result so far: 13496.0
If we subtract 180 from 182, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
30 can be fit into 20 0 times, resulting in a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 13496.0
Subtracting 0 from 20 leaves us 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.

Let's proceed to step 8:
30 can be fit into 200 6 times, resulting in a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 13496.06
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 9:
30 can be fit into 200 6 times, resulting in a remainder of 20.
Record the quotient 6 as the next digit in the result. 
Result so far: 13496.066
The remainder is 20 after subtracting 180 from 200.
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 13496.066, with a leftover of 0.002.