We look at the division of 811506 by 12 
The aim is to understand the frequency of 12 in 811506.

On to step 1:
The number 12 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 12

Let's proceed to step 2:
When dividing 81 by 12, we get 6 with a remainder of 9.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
The remainder is 9 after subtracting 72 from 81.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 12

Step 3:
91 divided by 12 is 7 with a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 67.0
The remainder is 7 after subtracting 84 from 91.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 12

Advancing to step 4:
12 can be fit into 75 6 times, resulting in a remainder of 3.
The next digit of our result is 6. 
Result so far: 676.0
Subtract 72 from 75 to get 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 12

Moving on to step 5:
12 can be fit into 30 2 times, resulting in a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 6762.0
Subtracting 24 from 30 leaves us with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 12

Step 6:
The number 12 fits into 66 5 times, leaving a remainder of 6.
Write down 5 as next digit of the result. 
Result so far: 67625.0
The remainder is 6 after subtracting 60 from 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 7:
60 divided by 12 is 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 67625.5
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.

Let's proceed to step 8:
12 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 67625.5
If we take 0 away from 0, we end up 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.

Let's proceed to step 9:
If we divide 0 by 12, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 67625.5
Deduct 0 from 0 and we're left 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.

The final outcome is 67625.5, with a leftover of 0.0.