We look at the division of 78459416 by 259 
The aim is to understand the frequency of 259 in 78459416.

Moving on to step 1:
The number 259 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 259

Going ahead to step 2:
259 can be fit into 78 0 times, resulting in a remainder of 78.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 78, we end up with 78.
Include the next digit (4) from the dividend after 78, then repeat: 784 / 259

On to step 3:
If we divide 784 by 259, we get 3 and a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 777 from 784, we get 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 259

Step 4:
The number 259 fits into 75 0 times, leaving a remainder of 75.
The next digit of our result is 0. 
Result so far: 30.0
If we subtract 0 from 75, we get 75.
Bring next digit (9) of the dividend behind the 75 and repeat the process: 759 / 259

Let's proceed to step 5:
The number 259 fits into 759 2 times, leaving a remainder of 241.
Record the quotient 2 as the next digit in the result. 
Result so far: 302.0
If we take 518 away from 759, we end up with 241.
Take the next digit (4) from the dividend and append it to 241, then repeat: 2414 / 259

Moving on to step 6:
259 can be fit into 2414 9 times, resulting in a remainder of 83.
Write down 9 as next digit of the result. 
Result so far: 3029.0
The remainder is 83 after subtracting 2331 from 2414.
Take the next digit (1) from the dividend and append it to 83, then repeat: 831 / 259

Advancing to step 7:
831 divided by 259 is 3 with a remainder of 54.
The number 3 becomes the next digit in our result. 
Result so far: 30293.0
If we take 777 away from 831, we end up with 54.
Take the next digit (6) from the dividend and append it to 54, then repeat: 546 / 259

Moving on to step 8:
When dividing 546 by 259, we get 2 with a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 302932.0
If we take 518 away from 546, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 9:
When dividing 280 by 259, we get 1 with a remainder of 21.
The number 1 becomes the next digit in our result. 
Result so far: 302932.1
If we take 259 away from 280, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 10:
If we divide 210 by 259, we get 0 and a remainder of 210.
The next digit of our result is 0. 
Result so far: 302932.1
If we subtract 0 from 210, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Let's proceed to step 11:
259 goes into 2100 8 times with a remainder of 28.
Put 8 as the next digit of the answer. 
Result so far: 302932.108
Subtract 2072 from 2100 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 12:
When dividing 280 by 259, we get 1 with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 302932.1081
If we subtract 259 from 280, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 13:
210 divided by 259 is 0 with a remainder of 210.
The next digit of our result is 0. 
Result so far: 302932.1081
Deduct 0 from 210 and we're left with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Let's proceed to step 14:
259 can be fit into 2100 8 times, resulting in a remainder of 28.
The next digit of our result is 8. 
Result so far: 302932.108108
Subtract 2072 from 2100 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 15:
259 goes into 280 1 times with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 302932.1081081
The remainder is 21 after subtracting 259 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 16:
The number 259 fits into 210 0 times, leaving a remainder of 210.
The next digit of our result is 0. 
Result so far: 302932.1081081
Subtracting 0 from 210 leaves us with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

The final outcome is 302932.1081081, with a leftover of 2.1e-07.