Let's divide 755354 by 12
The aim is to understand the frequency of 12 in 755354.

On to step 1:
12 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 12

Going ahead to step 2:
12 goes into 75 6 times with a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtract 72 from 75 to get 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 12

On to step 3:
When dividing 35 by 12, we get 2 with a remainder of 11.
The number 2 becomes the next digit in our result. 
Result so far: 62.0
The remainder is 11 after subtracting 24 from 35.
Include the next digit (3) from the dividend after 11, then repeat: 113 / 12

Step 4:
The number 12 fits into 113 9 times, leaving a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 629.0
Deduct 108 from 113 and we're left with 5.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 12

Going ahead to step 5:
55 divided by 12 is 4 with a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 6294.0
Subtract 48 from 55 to get 7.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 12

Moving on to step 6:
12 goes into 74 6 times with a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 62946.0
The remainder is 2 after subtracting 72 from 74.
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: 62946.1
If we subtract 12 from 20, 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.

Step 8:
The number 12 fits into 80 6 times, leaving a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 62946.16
Subtracting 72 from 80 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.

Advancing to step 9:
The number 12 fits into 80 6 times, leaving a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 62946.166
Subtracting 72 from 80 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.

After the division, we end up with 62946.166 and a remainder of 0.0008.