We look at the division of 2509911 by 519 
The aim is to understand the frequency of 519 in 2509911.

Advancing to step 1:
The number 519 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 519

Advancing to step 2:
519 can be fit into 25 0 times, resulting in a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 25, we end up with 25.
Bring next digit (0) of the dividend behind the 25 and repeat the process: 250 / 519

Step 3:
250 divided by 519 is 0 with a remainder of 250.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 250, we get 250.
Take the next digit (9) from the dividend and append it to 250, then repeat: 2509 / 519

Advancing to step 4:
519 goes into 2509 4 times with a remainder of 433.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 2076 from 2509 and we're left with 433.
Append the next digit (9) from the dividend to 433 and continue with: 4339 / 519

Going ahead to step 5:
519 can be fit into 4339 8 times, resulting in a remainder of 187.
The number 8 becomes the next digit in our result. 
Result so far: 48.0
If we take 4152 away from 4339, we end up with 187.
Bring next digit (1) of the dividend behind the 187 and repeat the process: 1871 / 519

Step 6:
519 goes into 1871 3 times with a remainder of 314.
Use 3 as the next digit of our solution. 
Result so far: 483.0
The remainder is 314 after subtracting 1557 from 1871.
Bring next digit (1) of the dividend behind the 314 and repeat the process: 3141 / 519

Let's proceed to step 7:
519 can be fit into 3141 6 times, resulting in a remainder of 27.
The number 6 becomes the next digit in our result. 
Result so far: 4836.0
If we subtract 3114 from 3141, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 8:
If we divide 270 by 519, we get 0 and a remainder of 270.
Use 0 as the next digit of our solution. 
Result so far: 4836.0
Deduct 0 from 270 and we're left with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Step 9:
2700 divided by 519 is 5 with a remainder of 105.
Put 5 as the next digit of the answer. 
Result so far: 4836.05
The remainder is 105 after subtracting 2595 from 2700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Moving on to step 10:
519 can be fit into 1050 2 times, resulting in a remainder of 12.
The next digit of our result is 2. 
Result so far: 4836.052
If we subtract 1038 from 1050, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 11:
519 goes into 120 0 times with a remainder of 120.
Use 0 as the next digit of our solution. 
Result so far: 4836.052
The remainder is 120 after subtracting 0 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 12:
1200 divided by 519 is 2 with a remainder of 162.
Write down 2 as next digit of the result. 
Result so far: 4836.05202
Subtract 1038 from 1200 to get 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Step 13:
If we divide 1620 by 519, we get 3 and a remainder of 63.
Record the quotient 3 as the next digit in the result. 
Result so far: 4836.052023
Deduct 1557 from 1620 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 14:
630 divided by 519 is 1 with a remainder of 111.
Put 1 as the next digit of the answer. 
Result so far: 4836.0520231
Subtracting 519 from 630 leaves us with 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Let's proceed to step 15:
1110 divided by 519 is 2 with a remainder of 72.
Record the quotient 2 as the next digit in the result. 
Result so far: 4836.05202312
If we take 1038 away from 1110, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final result is 4836.05202312 with a remainder of 7.2e-08.