We're dividing 12415 by 30 
We want to divide 12415 by 30.

On to step 1:
30 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 30

Let's proceed to step 2:
12 divided by 30 is 0 with a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Bring next digit (4) of the dividend behind the 12 and repeat the process: 124 / 30

On to step 3:
If we divide 124 by 30, we get 4 and a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we take 120 away from 124, we end up with 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 30

On to step 4:
41 divided by 30 is 1 with a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 41.0
The remainder is 11 after subtracting 30 from 41.
Append the next digit (5) from the dividend to 11 and continue with: 115 / 30

Going ahead to step 5:
When dividing 115 by 30, we get 3 with a remainder of 25.
Put 3 as the next digit of the answer. 
Result so far: 413.0
If we subtract 90 from 115, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 6:
30 goes into 250 8 times with a remainder of 10.
The number 8 becomes the next digit in our result. 
Result so far: 413.8
The remainder is 10 after subtracting 240 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 7:
When dividing 100 by 30, we get 3 with a remainder of 10.
The next digit of our result is 3. 
Result so far: 413.83
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
The number 30 fits into 100 3 times, leaving a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 413.833
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 413.833, with a leftover of 0.001.