We look at the division of 345034 by 12 
The aim is to understand the frequency of 12 in 345034.

On to step 1:
12 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 12

Moving on to step 2:
12 can be fit into 34 2 times, resulting in a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 24 from 34 to get 10.
Grab the next digit (5) from the dividend, add it to 10, then carry on: 105 / 12

Advancing to step 3:
If we divide 105 by 12, we get 8 and a remainder of 9.
The next digit of our result is 8. 
Result so far: 28.0
Subtracting 96 from 105 leaves us with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 12

Let's proceed to step 4:
12 can be fit into 90 7 times, resulting in a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 287.0
If we subtract 84 from 90, we get 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 12

Advancing to step 5:
The number 12 fits into 63 5 times, leaving a remainder of 3.
Record the quotient 5 as the next digit in the result. 
Result so far: 2875.0
If we take 60 away from 63, we end up with 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 12

Let's proceed to step 6:
34 divided by 12 is 2 with a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 28752.0
Subtract 24 from 34 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
12 can be fit into 100 8 times, resulting in a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 28752.8
Subtract 96 from 100 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 8:
The number 12 fits into 40 3 times, leaving a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 28752.83
If we subtract 36 from 40, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
The number 12 fits into 40 3 times, leaving a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 28752.833
Subtracting 36 from 40 leaves us 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.

The quotient of the division is 28752.833, and the remainder is 0.0004.