We look at the division of 931514 by 30 
The aim is to understand the frequency of 30 in 931514.

On to step 1:
9 divided by 30 is 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 30

Advancing to step 2:
When dividing 93 by 30, we get 3 with a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 3 after subtracting 90 from 93.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 30

Let's proceed to step 3:
If we divide 31 by 30, we get 1 and a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 31.0
Deduct 30 from 31 and we're left with 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 30

On to step 4:
15 divided by 30 is 0 with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 310.0
Subtract 0 from 15 to get 15.
Include the next digit (1) from the dividend after 15, then repeat: 151 / 30

Going ahead to step 5:
151 divided by 30 is 5 with a remainder of 1.
The next digit of our result is 5. 
Result so far: 3105.0
Subtract 150 from 151 to get 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 30

Step 6:
30 goes into 14 0 times with a remainder of 14.
Use 0 as the next digit of our solution. 
Result so far: 31050.0
Subtract 0 from 14 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 7:
140 divided by 30 is 4 with a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 31050.4
Subtracting 120 from 140 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.

Advancing to step 8:
If we divide 200 by 30, we get 6 and a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 31050.46
Subtract 180 from 200 to 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.

Going ahead to step 9:
200 divided by 30 is 6 with a remainder of 20.
Record the quotient 6 as the next digit in the result. 
Result so far: 31050.466
Subtract 180 from 200 to 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.

The final result is 31050.466 with a remainder of 0.002.