Let's divide 66672619 by 513
The aim is to understand the frequency of 513 in 66672619.

Advancing to step 1:
513 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 513

Let's proceed to step 2:
When dividing 66 by 513, we get 0 with a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Append the next digit (6) from the dividend to 66 and continue with: 666 / 513

Going ahead to step 3:
513 can be fit into 666 1 times, resulting in a remainder of 153.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 513 from 666 and we're left with 153.
Append the next digit (7) from the dividend to 153 and continue with: 1537 / 513

Advancing to step 4:
When dividing 1537 by 513, we get 2 with a remainder of 511.
The next digit of our result is 2. 
Result so far: 12.0
If we take 1026 away from 1537, we end up with 511.
Bring next digit (2) of the dividend behind the 511 and repeat the process: 5112 / 513

Moving on to step 5:
The number 513 fits into 5112 9 times, leaving a remainder of 495.
Write down 9 as next digit of the result. 
Result so far: 129.0
Subtracting 4617 from 5112 leaves us with 495.
Include the next digit (6) from the dividend after 495, then repeat: 4956 / 513

Let's proceed to step 6:
513 can be fit into 4956 9 times, resulting in a remainder of 339.
The next digit of our result is 9. 
Result so far: 1299.0
The remainder is 339 after subtracting 4617 from 4956.
Take the next digit (1) from the dividend and append it to 339, then repeat: 3391 / 513

Let's proceed to step 7:
3391 divided by 513 is 6 with a remainder of 313.
Write down 6 as next digit of the result. 
Result so far: 12996.0
Subtracting 3078 from 3391 leaves us with 313.
Include the next digit (9) from the dividend after 313, then repeat: 3139 / 513

Moving on to step 8:
The number 513 fits into 3139 6 times, leaving a remainder of 61.
Write down 6 as next digit of the result. 
Result so far: 129966.0
If we subtract 3078 from 3139, we get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Let's proceed to step 9:
610 divided by 513 is 1 with a remainder of 97.
Record the quotient 1 as the next digit in the result. 
Result so far: 129966.1
Subtracting 513 from 610 leaves us with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Advancing to step 10:
If we divide 970 by 513, we get 1 and a remainder of 457.
Record the quotient 1 as the next digit in the result. 
Result so far: 129966.11
Subtract 513 from 970 to get 457.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4570, and continue the process.

After the division, we end up with 129966.11 and a remainder of 0.457.