Let's divide 847996 by 66
The aim is to understand the frequency of 66 in 847996.

Step 1:
The number 66 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 66

Moving on to step 2:
The number 66 fits into 84 1 times, leaving a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 66 from 84 and we're left with 18.
Bring next digit (7) of the dividend behind the 18 and repeat the process: 187 / 66

Moving on to step 3:
The number 66 fits into 187 2 times, leaving a remainder of 55.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we take 132 away from 187, we end up with 55.
Bring next digit (9) of the dividend behind the 55 and repeat the process: 559 / 66

Going ahead to step 4:
66 can be fit into 559 8 times, resulting in a remainder of 31.
The next digit of our result is 8. 
Result so far: 128.0
If we take 528 away from 559, we end up with 31.
Bring next digit (9) of the dividend behind the 31 and repeat the process: 319 / 66

On to step 5:
66 goes into 319 4 times with a remainder of 55.
The number 4 becomes the next digit in our result. 
Result so far: 1284.0
The remainder is 55 after subtracting 264 from 319.
Fetch the next digit (6) from the dividend, attach it to 55 and continue: 556 / 66

Going ahead to step 6:
If we divide 556 by 66, we get 8 and a remainder of 28.
The number 8 becomes the next digit in our result. 
Result so far: 12848.0
If we subtract 528 from 556, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 7:
When dividing 280 by 66, we get 4 with a remainder of 16.
The next digit of our result is 4. 
Result so far: 12848.4
Subtracting 264 from 280 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 8:
The number 66 fits into 160 2 times, leaving a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 12848.42
The remainder is 28 after subtracting 132 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 9:
The number 66 fits into 280 4 times, leaving a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 12848.424
Subtract 264 from 280 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 10:
160 divided by 66 is 2 with a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 12848.4242
Subtracting 132 from 160 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 11:
If we divide 280 by 66, we get 4 and a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 12848.42424
Deduct 264 from 280 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 12:
160 divided by 66 is 2 with a remainder of 28.
Write down 2 as next digit of the result. 
Result so far: 12848.424242
Subtract 132 from 160 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 13:
The number 66 fits into 280 4 times, leaving a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 12848.4242424
Subtract 264 from 280 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 14:
The number 66 fits into 160 2 times, leaving a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 12848.42424242
If we take 132 away from 160, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

The final outcome is 12848.42424242, with a leftover of 2.8e-08.