379845 divided by 66 
The aim is to understand the frequency of 66 in 379845.

Going ahead to step 1:
66 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 66

Going ahead to step 2:
If we divide 37 by 66, we get 0 and a remainder of 37.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 37, we get 37.
Take the next digit (9) from the dividend and append it to 37, then repeat: 379 / 66

Advancing to step 3:
The number 66 fits into 379 5 times, leaving a remainder of 49.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtracting 330 from 379 leaves us with 49.
Fetch the next digit (8) from the dividend, attach it to 49 and continue: 498 / 66

Moving on to step 4:
66 goes into 498 7 times with a remainder of 36.
Put 7 as the next digit of the answer. 
Result so far: 57.0
The remainder is 36 after subtracting 462 from 498.
Include the next digit (4) from the dividend after 36, then repeat: 364 / 66

Going ahead to step 5:
364 divided by 66 is 5 with a remainder of 34.
Record the quotient 5 as the next digit in the result. 
Result so far: 575.0
Subtracting 330 from 364 leaves us with 34.
Include the next digit (5) from the dividend after 34, then repeat: 345 / 66

On to step 6:
345 divided by 66 is 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 5755.0
If we subtract 330 from 345, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 7:
150 divided by 66 is 2 with a remainder of 18.
The next digit of our result is 2. 
Result so far: 5755.2
Deduct 132 from 150 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 8:
If we divide 180 by 66, we get 2 and a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 5755.22
The remainder is 48 after subtracting 132 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The quotient of the division is 5755.22, and the remainder is 0.048.