42708165 ÷ 12 
The aim is to understand the frequency of 12 in 42708165.

Let's proceed to step 1:
If we divide 4 by 12, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 12

Let's proceed to step 2:
When dividing 42 by 12, we get 3 with a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 36 from 42 and we're left with 6.
Append the next digit (7) from the dividend to 6 and continue with: 67 / 12

On to step 3:
67 divided by 12 is 5 with a remainder of 7.
The next digit of our result is 5. 
Result so far: 35.0
Subtracting 60 from 67 leaves us with 7.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 12

Moving on to step 4:
If we divide 70 by 12, we get 5 and a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 355.0
Deduct 60 from 70 and we're left with 10.
Grab the next digit (8) from the dividend, add it to 10, then carry on: 108 / 12

Moving on to step 5:
When dividing 108 by 12, we get 9 with a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 3559.0
The remainder is 0 after subtracting 108 from 108.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 12

Let's proceed to step 6:
If we divide 1 by 12, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 35590.0
Subtract 0 from 1 to get 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 12

Let's proceed to step 7:
12 can be fit into 16 1 times, resulting in a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 355901.0
If we take 12 away from 16, we end up with 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 12

Let's proceed to step 8:
12 goes into 45 3 times with a remainder of 9.
Record the quotient 3 as the next digit in the result. 
Result so far: 3559013.0
If we subtract 36 from 45, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 9:
12 can be fit into 90 7 times, resulting in a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 3559013.7
Subtract 84 from 90 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 10:
12 goes into 60 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 3559013.75
If we subtract 60 from 60, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 11:
12 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 3559013.75
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.

Step 12:
The number 12 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 3559013.75
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.

The final outcome is 3559013.75, with a leftover of 0.0.