We look at the division of 66462567 by 515 
The aim is to understand the frequency of 515 in 66462567.

Advancing to step 1:
6 divided by 515 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 515

Moving on to step 2:
If we divide 66 by 515, we get 0 and a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Fetch the next digit (4) from the dividend, attach it to 66 and continue: 664 / 515

Moving on to step 3:
The number 515 fits into 664 1 times, leaving a remainder of 149.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 515 from 664 to get 149.
Append the next digit (6) from the dividend to 149 and continue with: 1496 / 515

On to step 4:
515 goes into 1496 2 times with a remainder of 466.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtracting 1030 from 1496 leaves us with 466.
Fetch the next digit (2) from the dividend, attach it to 466 and continue: 4662 / 515

Step 5:
If we divide 4662 by 515, we get 9 and a remainder of 27.
The next digit of our result is 9. 
Result so far: 129.0
Subtract 4635 from 4662 to get 27.
Take the next digit (5) from the dividend and append it to 27, then repeat: 275 / 515

Advancing to step 6:
The number 515 fits into 275 0 times, leaving a remainder of 275.
Record the quotient 0 as the next digit in the result. 
Result so far: 1290.0
Deduct 0 from 275 and we're left with 275.
Fetch the next digit (6) from the dividend, attach it to 275 and continue: 2756 / 515

Let's proceed to step 7:
515 goes into 2756 5 times with a remainder of 181.
Put 5 as the next digit of the answer. 
Result so far: 12905.0
Subtracting 2575 from 2756 leaves us with 181.
Include the next digit (7) from the dividend after 181, then repeat: 1817 / 515

Moving on to step 8:
1817 divided by 515 is 3 with a remainder of 272.
The next digit of our result is 3. 
Result so far: 129053.0
Subtracting 1545 from 1817 leaves us with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Moving on to step 9:
When dividing 2720 by 515, we get 5 with a remainder of 145.
Use 5 as the next digit of our solution. 
Result so far: 129053.5
If we take 2575 away from 2720, we end up with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Let's proceed to step 10:
When dividing 1450 by 515, we get 2 with a remainder of 420.
Write down 2 as next digit of the result. 
Result so far: 129053.52
Deduct 1030 from 1450 and we're left with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 11:
4200 divided by 515 is 8 with a remainder of 80.
Put 8 as the next digit of the answer. 
Result so far: 129053.528
The remainder is 80 after subtracting 4120 from 4200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 12:
If we divide 800 by 515, we get 1 and a remainder of 285.
The number 1 becomes the next digit in our result. 
Result so far: 129053.5281
Subtract 515 from 800 to get 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

Going ahead to step 13:
2850 divided by 515 is 5 with a remainder of 275.
Record the quotient 5 as the next digit in the result. 
Result so far: 129053.52815
Subtracting 2575 from 2850 leaves us with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Advancing to step 14:
2750 divided by 515 is 5 with a remainder of 175.
Record the quotient 5 as the next digit in the result. 
Result so far: 129053.528155
Subtracting 2575 from 2750 leaves us with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

In conclusion, the division gives 129053.528155 with a balance of 1.75e-05.