We divide 519146 by 66
The aim is to understand the frequency of 66 in 519146.

On to step 1:
The number 66 fits into 5 0 times, leaving a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 66

Step 2:
66 goes into 51 0 times with a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Take the next digit (9) from the dividend and append it to 51, then repeat: 519 / 66

Advancing to step 3:
The number 66 fits into 519 7 times, leaving a remainder of 57.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 462 from 519, we get 57.
Include the next digit (1) from the dividend after 57, then repeat: 571 / 66

Let's proceed to step 4:
The number 66 fits into 571 8 times, leaving a remainder of 43.
Use 8 as the next digit of our solution. 
Result so far: 78.0
If we subtract 528 from 571, we get 43.
Fetch the next digit (4) from the dividend, attach it to 43 and continue: 434 / 66

Moving on to step 5:
66 can be fit into 434 6 times, resulting in a remainder of 38.
Use 6 as the next digit of our solution. 
Result so far: 786.0
If we subtract 396 from 434, we get 38.
Include the next digit (6) from the dividend after 38, then repeat: 386 / 66

Going ahead to step 6:
386 divided by 66 is 5 with a remainder of 56.
Record the quotient 5 as the next digit in the result. 
Result so far: 7865.0
Subtracting 330 from 386 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 7:
The number 66 fits into 560 8 times, leaving a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 7865.8
If we take 528 away from 560, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 8:
66 goes into 320 4 times with a remainder of 56.
The next digit of our result is 4. 
Result so far: 7865.84
Deduct 264 from 320 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 9:
When dividing 560 by 66, we get 8 with a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 7865.848
Subtract 528 from 560 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 10:
The number 66 fits into 320 4 times, leaving a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 7865.8484
Subtract 264 from 320 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 11:
If we divide 560 by 66, we get 8 and a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 7865.84848
Subtract 528 from 560 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 12:
If we divide 320 by 66, we get 4 and a remainder of 56.
Put 4 as the next digit of the answer. 
Result so far: 7865.848484
If we take 264 away from 320, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 13:
When dividing 560 by 66, we get 8 with a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 7865.8484848
If we take 528 away from 560, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 14:
320 divided by 66 is 4 with a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 7865.84848484
Deduct 264 from 320 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The quotient of the division is 7865.84848484, and the remainder is 5.6e-08.