149914 ÷ 12 
The aim is to understand the frequency of 12 in 149914.

Going ahead to step 1:
When dividing 1 by 12, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 12

Step 2:
14 divided by 12 is 1 with a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 2 after subtracting 12 from 14.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 12

Step 3:
12 can be fit into 29 2 times, resulting in a remainder of 5.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 5 after subtracting 24 from 29.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 12

Going ahead to step 4:
12 goes into 59 4 times with a remainder of 11.
Put 4 as the next digit of the answer. 
Result so far: 124.0
The remainder is 11 after subtracting 48 from 59.
Include the next digit (1) from the dividend after 11, then repeat: 111 / 12

Going ahead to step 5:
12 can be fit into 111 9 times, resulting in a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 1249.0
If we take 108 away from 111, we end up with 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 12

Moving on to step 6:
The number 12 fits into 34 2 times, leaving a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 12492.0
Deduct 24 from 34 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.

Going ahead to step 7:
100 divided by 12 is 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 12492.8
The remainder is 4 after subtracting 96 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 8:
When dividing 40 by 12, we get 3 with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 12492.83
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
If we divide 40 by 12, we get 3 and a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 12492.833
If we subtract 36 from 40, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 12492.833 and a remainder of 0.0004.