We're dividing 66467515 by 42 
The aim is to understand the frequency of 42 in 66467515.

On to step 1:
If we divide 6 by 42, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 42

Let's proceed to step 2:
The number 42 fits into 66 1 times, leaving a remainder of 24.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 24 after subtracting 42 from 66.
Grab the next digit (4) from the dividend, add it to 24, then carry on: 244 / 42

On to step 3:
42 can be fit into 244 5 times, resulting in a remainder of 34.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Subtract 210 from 244 to get 34.
Take the next digit (6) from the dividend and append it to 34, then repeat: 346 / 42

Let's proceed to step 4:
If we divide 346 by 42, we get 8 and a remainder of 10.
Put 8 as the next digit of the answer. 
Result so far: 158.0
If we take 336 away from 346, we end up with 10.
Append the next digit (7) from the dividend to 10 and continue with: 107 / 42

Going ahead to step 5:
If we divide 107 by 42, we get 2 and a remainder of 23.
The next digit of our result is 2. 
Result so far: 1582.0
Subtract 84 from 107 to get 23.
Take the next digit (5) from the dividend and append it to 23, then repeat: 235 / 42

On to step 6:
If we divide 235 by 42, we get 5 and a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 15825.0
The remainder is 25 after subtracting 210 from 235.
Bring next digit (1) of the dividend behind the 25 and repeat the process: 251 / 42

On to step 7:
42 can be fit into 251 5 times, resulting in a remainder of 41.
Record the quotient 5 as the next digit in the result. 
Result so far: 158255.0
Deduct 210 from 251 and we're left with 41.
Grab the next digit (5) from the dividend, add it to 41, then carry on: 415 / 42

Advancing to step 8:
If we divide 415 by 42, we get 9 and a remainder of 37.
Put 9 as the next digit of the answer. 
Result so far: 1582559.0
If we subtract 378 from 415, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 9:
If we divide 370 by 42, we get 8 and a remainder of 34.
The next digit of our result is 8. 
Result so far: 1582559.8
The remainder is 34 after subtracting 336 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 10:
42 can be fit into 340 8 times, resulting in a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 1582559.88
If we subtract 336 from 340, 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.

The quotient of the division is 1582559.88, and the remainder is 0.004.