We're dividing 345011 by 12 
The aim is to understand the frequency of 12 in 345011.

Step 1:
3 divided by 12 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 12

Step 2:
34 divided by 12 is 2 with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 24 from 34 to get 10.
Take the next digit (5) from the dividend and append it to 10, then repeat: 105 / 12

Moving on 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
If we take 96 away from 105, we end up with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 12

Let's proceed to step 4:
90 divided by 12 is 7 with a remainder of 6.
The next digit of our result is 7. 
Result so far: 287.0
If we take 84 away from 90, we end up with 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 12

On to step 5:
If we divide 61 by 12, we get 5 and a remainder of 1.
Record the quotient 5 as the next digit in the result. 
Result so far: 2875.0
Subtract 60 from 61 to get 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 12

Advancing to step 6:
12 goes into 11 0 times with a remainder of 11.
Write down 0 as next digit of the result. 
Result so far: 28750.0
Deduct 0 from 11 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
The number 12 fits into 110 9 times, leaving a remainder of 2.
The number 9 becomes the next digit in our result. 
Result so far: 28750.9
Subtract 108 from 110 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 8:
12 goes into 20 1 times with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 28750.91
If we take 12 away from 20, we end up 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.

Moving on to step 9:
If we divide 80 by 12, we get 6 and a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 28750.916
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 10:
12 goes into 80 6 times with a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 28750.9166
If we take 72 away from 80, we end up 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.

The final result is 28750.9166 with a remainder of 8e-05.