663266 divided by 12 
The aim is to understand the frequency of 12 in 663266.

On to step 1:
When dividing 6 by 12, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 12

Moving on to step 2:
66 divided by 12 is 5 with a remainder of 6.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
The remainder is 6 after subtracting 60 from 66.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 12

Step 3:
When dividing 63 by 12, we get 5 with a remainder of 3.
Record the quotient 5 as the next digit in the result. 
Result so far: 55.0
Subtract 60 from 63 to get 3.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 12

Step 4:
The number 12 fits into 32 2 times, leaving a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 552.0
Deduct 24 from 32 and we're left with 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 12

Advancing to step 5:
12 goes into 86 7 times with a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 5527.0
Deduct 84 from 86 and we're left with 2.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 12

Step 6:
12 goes into 26 2 times with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 55272.0
Subtracting 24 from 26 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 7:
If we divide 20 by 12, we get 1 and a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 55272.1
Subtracting 12 from 20 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 8:
When dividing 80 by 12, we get 6 with a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 55272.16
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 9:
80 divided by 12 is 6 with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 55272.166
If we subtract 72 from 80, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 55272.166 with a remaining 0.0008.