We divide 64642699 by 520
The aim is to understand the frequency of 520 in 64642699.

Moving on to step 1:
The number 520 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 520

On to step 2:
64 divided by 520 is 0 with a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Bring next digit (6) of the dividend behind the 64 and repeat the process: 646 / 520

On to step 3:
The number 520 fits into 646 1 times, leaving a remainder of 126.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 126 after subtracting 520 from 646.
Grab the next digit (4) from the dividend, add it to 126, then carry on: 1264 / 520

Going ahead to step 4:
1264 divided by 520 is 2 with a remainder of 224.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtract 1040 from 1264 to get 224.
Grab the next digit (2) from the dividend, add it to 224, then carry on: 2242 / 520

Let's proceed to step 5:
520 goes into 2242 4 times with a remainder of 162.
Put 4 as the next digit of the answer. 
Result so far: 124.0
Deduct 2080 from 2242 and we're left with 162.
Grab the next digit (6) from the dividend, add it to 162, then carry on: 1626 / 520

Advancing to step 6:
520 can be fit into 1626 3 times, resulting in a remainder of 66.
Write down 3 as next digit of the result. 
Result so far: 1243.0
Subtract 1560 from 1626 to get 66.
Fetch the next digit (9) from the dividend, attach it to 66 and continue: 669 / 520

On to step 7:
520 goes into 669 1 times with a remainder of 149.
The number 1 becomes the next digit in our result. 
Result so far: 12431.0
Deduct 520 from 669 and we're left with 149.
Append the next digit (9) from the dividend to 149 and continue with: 1499 / 520

Moving on to step 8:
The number 520 fits into 1499 2 times, leaving a remainder of 459.
Record the quotient 2 as the next digit in the result. 
Result so far: 124312.0
Subtracting 1040 from 1499 leaves us with 459.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4590, and continue the process.

Step 9:
The number 520 fits into 4590 8 times, leaving a remainder of 430.
Write down 8 as next digit of the result. 
Result so far: 124312.8
Deduct 4160 from 4590 and we're left with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

Let's proceed to step 10:
520 goes into 4300 8 times with a remainder of 140.
Write down 8 as next digit of the result. 
Result so far: 124312.88
Deduct 4160 from 4300 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Our division results in 124312.88 with a remaining 0.14.