We look at the division of 454743 by 30 
The aim is to understand the frequency of 30 in 454743.

Step 1:
4 divided by 30 is 0 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.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 30

Going ahead to step 2:
30 goes into 45 1 times with a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 15 after subtracting 30 from 45.
Include the next digit (4) from the dividend after 15, then repeat: 154 / 30

Moving on to step 3:
If we divide 154 by 30, we get 5 and a remainder of 4.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we subtract 150 from 154, we get 4.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 30

Advancing to step 4:
47 divided by 30 is 1 with a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 151.0
If we subtract 30 from 47, we get 17.
Include the next digit (4) from the dividend after 17, then repeat: 174 / 30

Let's proceed to step 5:
When dividing 174 by 30, we get 5 with a remainder of 24.
The next digit of our result is 5. 
Result so far: 1515.0
The remainder is 24 after subtracting 150 from 174.
Append the next digit (3) from the dividend to 24 and continue with: 243 / 30

Let's proceed to step 6:
When dividing 243 by 30, we get 8 with a remainder of 3.
Write down 8 as next digit of the result. 
Result so far: 15158.0
If we take 240 away from 243, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
The number 30 fits into 30 1 times, leaving a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 15158.1
Deduct 30 from 30 and we're left 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 8:
30 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 15158.1
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.

Moving on to step 9:
30 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 15158.1
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.

The final result is 15158.1 with a remainder of 0.0.