We look at the division of 29980494 by 12 
The aim is to understand the frequency of 12 in 29980494.

Let's proceed to step 1:
If we divide 2 by 12, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (9) from the dividend, attach it to 2 and continue: 29 / 12

Step 2:
The number 12 fits into 29 2 times, leaving a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 24 from 29 and we're left with 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 12

Going ahead to step 3:
59 divided by 12 is 4 with a remainder of 11.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
If we take 48 away from 59, we end up with 11.
Grab the next digit (8) from the dividend, add it to 11, then carry on: 118 / 12

Step 4:
12 can be fit into 118 9 times, resulting in a remainder of 10.
The next digit of our result is 9. 
Result so far: 249.0
The remainder is 10 after subtracting 108 from 118.
Grab the next digit (0) from the dividend, add it to 10, then carry on: 100 / 12

Going ahead to step 5:
12 goes into 100 8 times with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 2498.0
Subtract 96 from 100 to get 4.
Take the next digit (4) from the dividend and append it to 4, then repeat: 44 / 12

Going ahead to step 6:
When dividing 44 by 12, we get 3 with a remainder of 8.
The next digit of our result is 3. 
Result so far: 24983.0
Deduct 36 from 44 and we're left with 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 12

Step 7:
12 can be fit into 89 7 times, resulting in a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 249837.0
Subtracting 84 from 89 leaves us with 5.
Take the next digit (4) from the dividend and append it to 5, then repeat: 54 / 12

Going ahead to step 8:
54 divided by 12 is 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 2498374.0
The remainder is 6 after subtracting 48 from 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 9:
When dividing 60 by 12, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 2498374.5
The remainder is 0 after subtracting 60 from 60.
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 10:
If we divide 0 by 12, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 2498374.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
If we divide 0 by 12, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 2498374.5
Subtracting 0 from 0 leaves us 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.

After the division, we end up with 2498374.5 and a remainder of 0.0.