We look at the division of 679969 by 12 
The aim is to understand the frequency of 12 in 679969.

On to step 1:
When dividing 6 by 12, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (7) from the dividend, attach it to 6 and continue: 67 / 12

Advancing to step 2:
12 goes into 67 5 times with a remainder of 7.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 60 from 67 to get 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 12

Advancing to step 3:
If we divide 79 by 12, we get 6 and a remainder of 7.
The next digit of our result is 6. 
Result so far: 56.0
If we take 72 away from 79, we end up with 7.
Include the next digit (9) from the dividend after 7, then repeat: 79 / 12

Advancing to step 4:
12 goes into 79 6 times with a remainder of 7.
The number 6 becomes the next digit in our result. 
Result so far: 566.0
Subtract 72 from 79 to get 7.
Append the next digit (6) from the dividend to 7 and continue with: 76 / 12

Step 5:
76 divided by 12 is 6 with a remainder of 4.
The next digit of our result is 6. 
Result so far: 5666.0
Subtracting 72 from 76 leaves us with 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 12

Going ahead to step 6:
The number 12 fits into 49 4 times, leaving a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 56664.0
Deduct 48 from 49 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
When dividing 10 by 12, we get 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 56664.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
12 can be fit into 100 8 times, resulting in a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 56664.08
The remainder is 4 after subtracting 96 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
40 divided by 12 is 3 with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 56664.083
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.

Advancing to step 10:
The number 12 fits into 40 3 times, leaving a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 56664.0833
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.

Our division results in 56664.0833 with a remaining 4e-05.