We're dividing 79151395 by 509 
The aim is to understand the frequency of 509 in 79151395.

Going ahead to step 1:
509 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 509

Let's proceed to step 2:
The number 509 fits into 79 0 times, leaving a remainder of 79.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 79 leaves us with 79.
Bring next digit (1) of the dividend behind the 79 and repeat the process: 791 / 509

Let's proceed to step 3:
If we divide 791 by 509, we get 1 and a remainder of 282.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 509 away from 791, we end up with 282.
Take the next digit (5) from the dividend and append it to 282, then repeat: 2825 / 509

Step 4:
509 can be fit into 2825 5 times, resulting in a remainder of 280.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we take 2545 away from 2825, we end up with 280.
Include the next digit (1) from the dividend after 280, then repeat: 2801 / 509

Going ahead to step 5:
The number 509 fits into 2801 5 times, leaving a remainder of 256.
Record the quotient 5 as the next digit in the result. 
Result so far: 155.0
If we subtract 2545 from 2801, we get 256.
Include the next digit (3) from the dividend after 256, then repeat: 2563 / 509

Step 6:
If we divide 2563 by 509, we get 5 and a remainder of 18.
Record the quotient 5 as the next digit in the result. 
Result so far: 1555.0
Subtracting 2545 from 2563 leaves us with 18.
Fetch the next digit (9) from the dividend, attach it to 18 and continue: 189 / 509

On to step 7:
509 can be fit into 189 0 times, resulting in a remainder of 189.
Put 0 as the next digit of the answer. 
Result so far: 15550.0
Deduct 0 from 189 and we're left with 189.
Bring next digit (5) of the dividend behind the 189 and repeat the process: 1895 / 509

Advancing to step 8:
When dividing 1895 by 509, we get 3 with a remainder of 368.
Use 3 as the next digit of our solution. 
Result so far: 155503.0
If we take 1527 away from 1895, we end up with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Let's proceed to step 9:
If we divide 3680 by 509, we get 7 and a remainder of 117.
Record the quotient 7 as the next digit in the result. 
Result so far: 155503.7
Subtracting 3563 from 3680 leaves us with 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Moving on to step 10:
509 goes into 1170 2 times with a remainder of 152.
The number 2 becomes the next digit in our result. 
Result so far: 155503.72
If we take 1018 away from 1170, we end up with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Step 11:
When dividing 1520 by 509, we get 2 with a remainder of 502.
Write down 2 as next digit of the result. 
Result so far: 155503.722
Subtracting 1018 from 1520 leaves us with 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

In conclusion, the division gives 155503.722 with a balance of 0.0502.