Let's divide 394443 by 66
The aim is to understand the frequency of 66 in 394443.

Step 1:
66 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 66

Moving on to step 2:
66 can be fit into 39 0 times, resulting in a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Fetch the next digit (4) from the dividend, attach it to 39 and continue: 394 / 66

Step 3:
The number 66 fits into 394 5 times, leaving a remainder of 64.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we subtract 330 from 394, we get 64.
Fetch the next digit (4) from the dividend, attach it to 64 and continue: 644 / 66

Let's proceed to step 4:
66 can be fit into 644 9 times, resulting in a remainder of 50.
Record the quotient 9 as the next digit in the result. 
Result so far: 59.0
Subtracting 594 from 644 leaves us with 50.
Bring next digit (4) of the dividend behind the 50 and repeat the process: 504 / 66

Going ahead to step 5:
When dividing 504 by 66, we get 7 with a remainder of 42.
Use 7 as the next digit of our solution. 
Result so far: 597.0
If we take 462 away from 504, we end up with 42.
Include the next digit (3) from the dividend after 42, then repeat: 423 / 66

Step 6:
423 divided by 66 is 6 with a remainder of 27.
Record the quotient 6 as the next digit in the result. 
Result so far: 5976.0
The remainder is 27 after subtracting 396 from 423.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 7:
When dividing 270 by 66, we get 4 with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 5976.4
Deduct 264 from 270 and we're left 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.

Moving on to step 8:
66 goes into 60 0 times with a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 5976.4
Deduct 0 from 60 and we're left with 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 9:
When dividing 600 by 66, we get 9 with a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 5976.409
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.

On to step 10:
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: 5976.409
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 11:
66 can be fit into 600 9 times, resulting in a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 5976.40909
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.

Going ahead to step 12:
60 divided by 66 is 0 with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 5976.40909
If we take 0 away from 60, we end up with 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 13:
When dividing 600 by 66, we get 9 with a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 5976.4090909
Subtracting 594 from 600 leaves us 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.

Step 14:
66 can be fit into 60 0 times, resulting in a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 5976.4090909
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.

After the division, we end up with 5976.4090909 and a remainder of 6e-08.