500650 ÷ 66 
The aim is to understand the frequency of 66 in 500650.

Step 1:
5 divided by 66 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 66

Let's proceed to step 2:
When dividing 50 by 66, we get 0 with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 50 to get 50.
Bring next digit (0) of the dividend behind the 50 and repeat the process: 500 / 66

On to step 3:
When dividing 500 by 66, we get 7 with a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 462 from 500 leaves us with 38.
Fetch the next digit (6) from the dividend, attach it to 38 and continue: 386 / 66

Let's proceed to step 4:
If we divide 386 by 66, we get 5 and a remainder of 56.
Put 5 as the next digit of the answer. 
Result so far: 75.0
The remainder is 56 after subtracting 330 from 386.
Fetch the next digit (5) from the dividend, attach it to 56 and continue: 565 / 66

Let's proceed to step 5:
66 can be fit into 565 8 times, resulting in a remainder of 37.
The number 8 becomes the next digit in our result. 
Result so far: 758.0
Deduct 528 from 565 and we're left with 37.
Append the next digit (0) from the dividend to 37 and continue with: 370 / 66

Going ahead to step 6:
When dividing 370 by 66, we get 5 with a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 7585.0
The remainder is 40 after subtracting 330 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 7:
The number 66 fits into 400 6 times, leaving a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 7585.6
If we take 396 away from 400, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
66 can be fit into 40 0 times, resulting in a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 7585.6
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 9:
If we divide 400 by 66, we get 6 and a remainder of 4.
The next digit of our result is 6. 
Result so far: 7585.606
Subtract 396 from 400 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 10:
66 can be fit into 40 0 times, resulting in a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 7585.606
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 11:
The number 66 fits into 400 6 times, leaving a remainder of 4.
The next digit of our result is 6. 
Result so far: 7585.60606
Subtracting 396 from 400 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 12:
When dividing 40 by 66, we get 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 7585.60606
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 13:
If we divide 400 by 66, we get 6 and a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 7585.6060606
Subtracting 396 from 400 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 14:
40 divided by 66 is 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 7585.6060606
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

In conclusion, the division gives 7585.6060606 with a balance of 4e-08.