We look at the division of 430945 by 66 
The aim is to understand the frequency of 66 in 430945.

Moving on to step 1:
66 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 66

Moving on to step 2:
If we divide 43 by 66, we get 0 and a remainder of 43.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 43 to get 43.
Fetch the next digit (0) from the dividend, attach it to 43 and continue: 430 / 66

Step 3:
The number 66 fits into 430 6 times, leaving a remainder of 34.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Subtract 396 from 430 to get 34.
Include the next digit (9) from the dividend after 34, then repeat: 349 / 66

On to step 4:
66 can be fit into 349 5 times, resulting in a remainder of 19.
Put 5 as the next digit of the answer. 
Result so far: 65.0
If we take 330 away from 349, we end up with 19.
Include the next digit (4) from the dividend after 19, then repeat: 194 / 66

Let's proceed to step 5:
The number 66 fits into 194 2 times, leaving a remainder of 62.
The next digit of our result is 2. 
Result so far: 652.0
Deduct 132 from 194 and we're left with 62.
Append the next digit (5) from the dividend to 62 and continue with: 625 / 66

On to step 6:
66 can be fit into 625 9 times, resulting in a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 6529.0
The remainder is 31 after subtracting 594 from 625.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 7:
66 can be fit into 310 4 times, resulting in a remainder of 46.
The next digit of our result is 4. 
Result so far: 6529.4
The remainder is 46 after subtracting 264 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 8:
The number 66 fits into 460 6 times, leaving a remainder of 64.
The number 6 becomes the next digit in our result. 
Result so far: 6529.46
The remainder is 64 after subtracting 396 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 9:
640 divided by 66 is 9 with a remainder of 46.
The next digit of our result is 9. 
Result so far: 6529.469
If we subtract 594 from 640, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 10:
66 can be fit into 460 6 times, resulting in a remainder of 64.
Use 6 as the next digit of our solution. 
Result so far: 6529.4696
If we subtract 396 from 460, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 11:
The number 66 fits into 640 9 times, leaving a remainder of 46.
The next digit of our result is 9. 
Result so far: 6529.46969
Deduct 594 from 640 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 12:
460 divided by 66 is 6 with a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 6529.469696
Subtracting 396 from 460 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 13:
66 can be fit into 640 9 times, resulting in a remainder of 46.
The next digit of our result is 9. 
Result so far: 6529.4696969
If we take 594 away from 640, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 14:
If we divide 460 by 66, we get 6 and a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 6529.46969696
If we subtract 396 from 460, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The quotient of the division is 6529.46969696, and the remainder is 6.4e-08.