We divide 66966574 by 495
The aim is to understand the frequency of 495 in 66966574.

Moving on to step 1:
495 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 495

On to step 2:
When dividing 66 by 495, we get 0 with a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Include the next digit (9) from the dividend after 66, then repeat: 669 / 495

Moving on to step 3:
669 divided by 495 is 1 with a remainder of 174.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 495 away from 669, we end up with 174.
Include the next digit (6) from the dividend after 174, then repeat: 1746 / 495

Going ahead to step 4:
495 goes into 1746 3 times with a remainder of 261.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtracting 1485 from 1746 leaves us with 261.
Append the next digit (6) from the dividend to 261 and continue with: 2616 / 495

Step 5:
495 goes into 2616 5 times with a remainder of 141.
The next digit of our result is 5. 
Result so far: 135.0
Subtract 2475 from 2616 to get 141.
Append the next digit (5) from the dividend to 141 and continue with: 1415 / 495

Let's proceed to step 6:
495 can be fit into 1415 2 times, resulting in a remainder of 425.
The number 2 becomes the next digit in our result. 
Result so far: 1352.0
Subtract 990 from 1415 to get 425.
Bring next digit (7) of the dividend behind the 425 and repeat the process: 4257 / 495

On to step 7:
4257 divided by 495 is 8 with a remainder of 297.
Write down 8 as next digit of the result. 
Result so far: 13528.0
Deduct 3960 from 4257 and we're left with 297.
Take the next digit (4) from the dividend and append it to 297, then repeat: 2974 / 495

Going ahead to step 8:
495 can be fit into 2974 6 times, resulting in a remainder of 4.
The next digit of our result is 6. 
Result so far: 135286.0
Deduct 2970 from 2974 and we're left 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.

On to step 9:
40 divided by 495 is 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 135286.0
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 10:
If we divide 400 by 495, we get 0 and a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 135286.0
Deduct 0 from 400 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

After the division, we end up with 135286.0 and a remainder of 0.4.