12615 divided by 29 
The aim is to understand the frequency of 29 in 12615.

Let's proceed to step 1:
The number 29 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 29

Step 2:
The number 29 fits into 12 0 times, leaving a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Append the next digit (6) from the dividend to 12 and continue with: 126 / 29

Going ahead to step 3:
The number 29 fits into 126 4 times, leaving a remainder of 10.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 10 after subtracting 116 from 126.
Append the next digit (1) from the dividend to 10 and continue with: 101 / 29

Let's proceed to step 4:
101 divided by 29 is 3 with a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 43.0
If we subtract 87 from 101, we get 14.
Grab the next digit (5) from the dividend, add it to 14, then carry on: 145 / 29

Moving on to step 5:
29 can be fit into 145 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 435.0
Subtract 145 from 145 to 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.

Advancing to step 6:
29 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 435.0
Subtract 0 from 0 to 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.

Let's proceed to step 7:
The number 29 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 435.0
Subtract 0 from 0 to 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.

Our division results in 435.0 with a remaining 0.0.