We look at the division of 820668 by 12 
The aim is to understand the frequency of 12 in 820668.

Going ahead to step 1:
12 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (2) from the dividend and append it to 8, then repeat: 82 / 12

On to step 2:
12 goes into 82 6 times with a remainder of 10.
The next digit of our result is 6. 
Result so far: 6.0
If we take 72 away from 82, we end up with 10.
Grab the next digit (0) from the dividend, add it to 10, then carry on: 100 / 12

Going ahead to step 3:
If we divide 100 by 12, we get 8 and a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 68.0
If we subtract 96 from 100, we get 4.
Grab the next digit (6) from the dividend, add it to 4, then carry on: 46 / 12

Moving on to step 4:
When dividing 46 by 12, we get 3 with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 683.0
Subtracting 36 from 46 leaves us with 10.
Fetch the next digit (6) from the dividend, attach it to 10 and continue: 106 / 12

Moving on to step 5:
If we divide 106 by 12, we get 8 and a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 6838.0
Subtracting 96 from 106 leaves us with 10.
Grab the next digit (8) from the dividend, add it to 10, then carry on: 108 / 12

Advancing to step 6:
108 divided by 12 is 9 with a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 68389.0
If we take 108 away from 108, 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.

Advancing to step 7:
The number 12 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 68389.0
Subtracting 0 from 0 leaves us 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.

Advancing to step 8:
0 divided by 12 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 68389.0
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.

The final outcome is 68389.0, with a leftover of 0.0.