384555 divided by 66 
The aim is to understand the frequency of 66 in 384555.

Let's proceed to step 1:
66 can be fit into 3 0 times, resulting in a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 66

On to step 2:
The number 66 fits into 38 0 times, leaving a remainder of 38.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 38 and we're left with 38.
Grab the next digit (4) from the dividend, add it to 38, then carry on: 384 / 66

Step 3:
If we divide 384 by 66, we get 5 and a remainder of 54.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
The remainder is 54 after subtracting 330 from 384.
Include the next digit (5) from the dividend after 54, then repeat: 545 / 66

Moving on to step 4:
66 goes into 545 8 times with a remainder of 17.
The next digit of our result is 8. 
Result so far: 58.0
Deduct 528 from 545 and we're left with 17.
Append the next digit (5) from the dividend to 17 and continue with: 175 / 66

Going ahead to step 5:
66 goes into 175 2 times with a remainder of 43.
The number 2 becomes the next digit in our result. 
Result so far: 582.0
If we subtract 132 from 175, we get 43.
Include the next digit (5) from the dividend after 43, then repeat: 435 / 66

Going ahead to step 6:
66 goes into 435 6 times with a remainder of 39.
Record the quotient 6 as the next digit in the result. 
Result so far: 5826.0
If we subtract 396 from 435, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 7:
If we divide 390 by 66, we get 5 and a remainder of 60.
The number 5 becomes the next digit in our result. 
Result so far: 5826.5
Subtract 330 from 390 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 8:
If we divide 600 by 66, we get 9 and a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 5826.59
If we subtract 594 from 600, we 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.

Let's proceed to step 9:
The number 66 fits into 60 0 times, leaving a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 5826.59
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 10:
The number 66 fits into 600 9 times, leaving a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 5826.5909
The remainder is 6 after subtracting 594 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 11:
66 can be fit into 60 0 times, resulting in a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 5826.5909
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 12:
The number 66 fits into 600 9 times, leaving a remainder of 6.
The next digit of our result is 9. 
Result so far: 5826.590909
If we take 594 away from 600, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 13:
The number 66 fits into 60 0 times, leaving a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 5826.590909
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 14:
If we divide 600 by 66, we get 9 and a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 5826.59090909
If we subtract 594 from 600, we 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.

After the division, we end up with 5826.59090909 and a remainder of 6e-09.