We divide 415487 by 30
The aim is to understand the frequency of 30 in 415487.

On to step 1:
30 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (1) from the dividend, attach it to 4 and continue: 41 / 30

On to step 2:
30 goes into 41 1 times with a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 30 from 41, we get 11.
Take the next digit (5) from the dividend and append it to 11, then repeat: 115 / 30

Going ahead to step 3:
When dividing 115 by 30, we get 3 with a remainder of 25.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we take 90 away from 115, we end up with 25.
Include the next digit (4) from the dividend after 25, then repeat: 254 / 30

Going ahead to step 4:
254 divided by 30 is 8 with a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 138.0
Subtract 240 from 254 to get 14.
Fetch the next digit (8) from the dividend, attach it to 14 and continue: 148 / 30

Moving on to step 5:
The number 30 fits into 148 4 times, leaving a remainder of 28.
Use 4 as the next digit of our solution. 
Result so far: 1384.0
Subtract 120 from 148 to get 28.
Append the next digit (7) from the dividend to 28 and continue with: 287 / 30

On to step 6:
When dividing 287 by 30, we get 9 with a remainder of 17.
The next digit of our result is 9. 
Result so far: 13849.0
If we take 270 away from 287, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 7:
30 can be fit into 170 5 times, resulting in a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 13849.5
Subtracting 150 from 170 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.

Moving on to step 8:
When dividing 200 by 30, we get 6 with a remainder of 20.
The next digit of our result is 6. 
Result so far: 13849.56
Deduct 180 from 200 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.

Step 9:
When dividing 200 by 30, we get 6 with a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 13849.566
Deduct 180 from 200 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.

The final outcome is 13849.566, with a leftover of 0.002.