We're dividing 442373 by 30 
The aim is to understand the frequency of 30 in 442373.

On to step 1:
The number 30 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Append the next digit (4) from the dividend to 4 and continue with: 44 / 30

Going ahead to step 2:
The number 30 fits into 44 1 times, leaving a remainder of 14.
The next digit of our result is 1. 
Result so far: 1.0
If we take 30 away from 44, we end up with 14.
Bring next digit (2) of the dividend behind the 14 and repeat the process: 142 / 30

Going ahead to step 3:
The number 30 fits into 142 4 times, leaving a remainder of 22.
Write down 4 as next digit of the result. 
Result so far: 14.0
Subtracting 120 from 142 leaves us with 22.
Include the next digit (3) from the dividend after 22, then repeat: 223 / 30

Moving on to step 4:
30 can be fit into 223 7 times, resulting in a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 147.0
Subtract 210 from 223 to get 13.
Grab the next digit (7) from the dividend, add it to 13, then carry on: 137 / 30

Moving on to step 5:
30 goes into 137 4 times with a remainder of 17.
Put 4 as the next digit of the answer. 
Result so far: 1474.0
The remainder is 17 after subtracting 120 from 137.
Fetch the next digit (3) from the dividend, attach it to 17 and continue: 173 / 30

On to step 6:
30 can be fit into 173 5 times, resulting in a remainder of 23.
The number 5 becomes the next digit in our result. 
Result so far: 14745.0
Subtract 150 from 173 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 7:
30 goes into 230 7 times with a remainder of 20.
Use 7 as the next digit of our solution. 
Result so far: 14745.7
Deduct 210 from 230 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.

Going ahead to step 8:
30 goes into 200 6 times with a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 14745.76
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.

Advancing to step 9:
200 divided by 30 is 6 with a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 14745.766
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.

Our division results in 14745.766 with a remaining 0.002.