We look at the division of 224554 by 12 
The aim is to understand the frequency of 12 in 224554.

Step 1:
When dividing 2 by 12, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Take the next digit (2) from the dividend and append it to 2, then repeat: 22 / 12

Advancing to step 2:
12 goes into 22 1 times with a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 12 from 22 leaves us with 10.
Fetch the next digit (4) from the dividend, attach it to 10 and continue: 104 / 12

Step 3:
When dividing 104 by 12, we get 8 with a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 18.0
The remainder is 8 after subtracting 96 from 104.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 12

Advancing to step 4:
12 goes into 85 7 times with a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 187.0
If we subtract 84 from 85, we get 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 12

Going ahead to step 5:
The number 12 fits into 15 1 times, leaving a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 1871.0
The remainder is 3 after subtracting 12 from 15.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 12

Step 6:
34 divided by 12 is 2 with a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 18712.0
Subtract 24 from 34 to 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.

On to step 7:
12 can be fit into 100 8 times, resulting in a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 18712.8
If we take 96 away from 100, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 8:
12 can be fit into 40 3 times, resulting in a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 18712.83
If we take 36 away from 40, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to 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: 18712.833
Subtracting 36 from 40 leaves us with 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 18712.833 and a remainder of 0.0004.