Let's divide 96503015 by 520
The aim is to understand the frequency of 520 in 96503015.

Let's proceed to step 1:
9 divided by 520 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Take the next digit (6) from the dividend and append it to 9, then repeat: 96 / 520

Moving on to step 2:
520 can be fit into 96 0 times, resulting in a remainder of 96.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 96 and we're left with 96.
Grab the next digit (5) from the dividend, add it to 96, then carry on: 965 / 520

On to step 3:
The number 520 fits into 965 1 times, leaving a remainder of 445.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 520 from 965, we get 445.
Grab the next digit (0) from the dividend, add it to 445, then carry on: 4450 / 520

Advancing to step 4:
When dividing 4450 by 520, we get 8 with a remainder of 290.
Put 8 as the next digit of the answer. 
Result so far: 18.0
If we subtract 4160 from 4450, we get 290.
Bring next digit (3) of the dividend behind the 290 and repeat the process: 2903 / 520

Going ahead to step 5:
520 goes into 2903 5 times with a remainder of 303.
Put 5 as the next digit of the answer. 
Result so far: 185.0
Subtracting 2600 from 2903 leaves us with 303.
Fetch the next digit (0) from the dividend, attach it to 303 and continue: 3030 / 520

Let's proceed to step 6:
520 goes into 3030 5 times with a remainder of 430.
Use 5 as the next digit of our solution. 
Result so far: 1855.0
Subtracting 2600 from 3030 leaves us with 430.
Append the next digit (1) from the dividend to 430 and continue with: 4301 / 520

On to step 7:
The number 520 fits into 4301 8 times, leaving a remainder of 141.
Put 8 as the next digit of the answer. 
Result so far: 18558.0
Deduct 4160 from 4301 and we're left with 141.
Include the next digit (5) from the dividend after 141, then repeat: 1415 / 520

Step 8:
The number 520 fits into 1415 2 times, leaving a remainder of 375.
Use 2 as the next digit of our solution. 
Result so far: 185582.0
Deduct 1040 from 1415 and we're left with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

On to step 9:
520 can be fit into 3750 7 times, resulting in a remainder of 110.
Record the quotient 7 as the next digit in the result. 
Result so far: 185582.7
The remainder is 110 after subtracting 3640 from 3750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Step 10:
1100 divided by 520 is 2 with a remainder of 60.
Use 2 as the next digit of our solution. 
Result so far: 185582.72
If we subtract 1040 from 1100, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 11:
If we divide 600 by 520, we get 1 and a remainder of 80.
The next digit of our result is 1. 
Result so far: 185582.721
Subtract 520 from 600 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 12:
If we divide 800 by 520, we get 1 and a remainder of 280.
Use 1 as the next digit of our solution. 
Result so far: 185582.7211
If we take 520 away from 800, we end up with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

The final outcome is 185582.7211, with a leftover of 0.0028.