We divide 415395 by 66
The aim is to understand the frequency of 66 in 415395.

Step 1:
If we divide 4 by 66, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 66

Advancing to step 2:
66 can be fit into 41 0 times, resulting in a remainder of 41.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 41, we end up with 41.
Take the next digit (5) from the dividend and append it to 41, then repeat: 415 / 66

Let's proceed to step 3:
66 can be fit into 415 6 times, resulting in a remainder of 19.
The next digit of our result is 6. 
Result so far: 6.0
If we take 396 away from 415, we end up with 19.
Bring next digit (3) of the dividend behind the 19 and repeat the process: 193 / 66

Moving on to step 4:
66 can be fit into 193 2 times, resulting in a remainder of 61.
Write down 2 as next digit of the result. 
Result so far: 62.0
Subtracting 132 from 193 leaves us with 61.
Fetch the next digit (9) from the dividend, attach it to 61 and continue: 619 / 66

Going ahead to step 5:
619 divided by 66 is 9 with a remainder of 25.
The next digit of our result is 9. 
Result so far: 629.0
Subtract 594 from 619 to get 25.
Fetch the next digit (5) from the dividend, attach it to 25 and continue: 255 / 66

Let's proceed to step 6:
255 divided by 66 is 3 with a remainder of 57.
The next digit of our result is 3. 
Result so far: 6293.0
If we take 198 away from 255, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 7:
The number 66 fits into 570 8 times, leaving a remainder of 42.
Use 8 as the next digit of our solution. 
Result so far: 6293.8
Deduct 528 from 570 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 8:
420 divided by 66 is 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 6293.86
Subtracting 396 from 420 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 9:
If we divide 240 by 66, we get 3 and a remainder of 42.
Write down 3 as next digit of the result. 
Result so far: 6293.863
The remainder is 42 after subtracting 198 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 10:
66 can be fit into 420 6 times, resulting in a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 6293.8636
The remainder is 24 after subtracting 396 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 11:
The number 66 fits into 240 3 times, leaving a remainder of 42.
The next digit of our result is 3. 
Result so far: 6293.86363
If we subtract 198 from 240, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 12:
420 divided by 66 is 6 with a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 6293.863636
Subtracting 396 from 420 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 13:
If we divide 240 by 66, we get 3 and a remainder of 42.
The number 3 becomes the next digit in our result. 
Result so far: 6293.8636363
The remainder is 42 after subtracting 198 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 14:
66 goes into 420 6 times with a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 6293.86363636
If we take 396 away from 420, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

After the division, we end up with 6293.86363636 and a remainder of 2.4e-08.