We look at the division of 95857079 by 509 
The aim is to understand the frequency of 509 in 95857079.

Step 1:
When dividing 9 by 509, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Bring next digit (5) of the dividend behind the 9 and repeat the process: 95 / 509

On to step 2:
509 can be fit into 95 0 times, resulting in a remainder of 95.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 95 to get 95.
Grab the next digit (8) from the dividend, add it to 95, then carry on: 958 / 509

Moving on to step 3:
509 can be fit into 958 1 times, resulting in a remainder of 449.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 509 away from 958, we end up with 449.
Bring next digit (5) of the dividend behind the 449 and repeat the process: 4495 / 509

Going ahead to step 4:
If we divide 4495 by 509, we get 8 and a remainder of 423.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
Deduct 4072 from 4495 and we're left with 423.
Append the next digit (7) from the dividend to 423 and continue with: 4237 / 509

Advancing to step 5:
The number 509 fits into 4237 8 times, leaving a remainder of 165.
Record the quotient 8 as the next digit in the result. 
Result so far: 188.0
Subtract 4072 from 4237 to get 165.
Grab the next digit (0) from the dividend, add it to 165, then carry on: 1650 / 509

On to step 6:
509 can be fit into 1650 3 times, resulting in a remainder of 123.
Write down 3 as next digit of the result. 
Result so far: 1883.0
Subtract 1527 from 1650 to get 123.
Take the next digit (7) from the dividend and append it to 123, then repeat: 1237 / 509

Going ahead to step 7:
509 goes into 1237 2 times with a remainder of 219.
Write down 2 as next digit of the result. 
Result so far: 18832.0
The remainder is 219 after subtracting 1018 from 1237.
Include the next digit (9) from the dividend after 219, then repeat: 2199 / 509

On to step 8:
When dividing 2199 by 509, we get 4 with a remainder of 163.
Use 4 as the next digit of our solution. 
Result so far: 188324.0
Subtracting 2036 from 2199 leaves us with 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Going ahead to step 9:
The number 509 fits into 1630 3 times, leaving a remainder of 103.
Write down 3 as next digit of the result. 
Result so far: 188324.3
Subtracting 1527 from 1630 leaves us with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Let's proceed to step 10:
509 can be fit into 1030 2 times, resulting in a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 188324.32
Subtract 1018 from 1030 to 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:
The number 509 fits into 120 0 times, leaving a remainder of 120.
The number 0 becomes the next digit in our result. 
Result so far: 188324.32
If we subtract 0 from 120, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 12:
The number 509 fits into 1200 2 times, leaving a remainder of 182.
Record the quotient 2 as the next digit in the result. 
Result so far: 188324.3202
The remainder is 182 after subtracting 1018 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Let's proceed to step 13:
If we divide 1820 by 509, we get 3 and a remainder of 293.
The number 3 becomes the next digit in our result. 
Result so far: 188324.32023
Subtracting 1527 from 1820 leaves us with 293.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2930, and continue the process.

Let's proceed to step 14:
If we divide 2930 by 509, we get 5 and a remainder of 385.
Use 5 as the next digit of our solution. 
Result so far: 188324.320235
Deduct 2545 from 2930 and we're left with 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Let's proceed to step 15:
When dividing 3850 by 509, we get 7 with a remainder of 287.
Put 7 as the next digit of the answer. 
Result so far: 188324.3202357
Subtracting 3563 from 3850 leaves us with 287.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2870, and continue the process.

Advancing to step 16:
When dividing 2870 by 509, we get 5 with a remainder of 325.
Record the quotient 5 as the next digit in the result. 
Result so far: 188324.32023575
Subtract 2545 from 2870 to get 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

After the division, we end up with 188324.32023575 and a remainder of 3.25e-07.