We're dividing 73215956 by 259 
The aim is to understand the frequency of 259 in 73215956.

On to step 1:
259 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (3) from the dividend, add it to 7, then carry on: 73 / 259

On to step 2:
73 divided by 259 is 0 with a remainder of 73.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 73 after subtracting 0 from 73.
Include the next digit (2) from the dividend after 73, then repeat: 732 / 259

Going ahead to step 3:
732 divided by 259 is 2 with a remainder of 214.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 518 from 732 and we're left with 214.
Fetch the next digit (1) from the dividend, attach it to 214 and continue: 2141 / 259

Moving on to step 4:
If we divide 2141 by 259, we get 8 and a remainder of 69.
The next digit of our result is 8. 
Result so far: 28.0
Subtract 2072 from 2141 to get 69.
Fetch the next digit (5) from the dividend, attach it to 69 and continue: 695 / 259

Step 5:
The number 259 fits into 695 2 times, leaving a remainder of 177.
The number 2 becomes the next digit in our result. 
Result so far: 282.0
If we take 518 away from 695, we end up with 177.
Append the next digit (9) from the dividend to 177 and continue with: 1779 / 259

On to step 6:
If we divide 1779 by 259, we get 6 and a remainder of 225.
Write down 6 as next digit of the result. 
Result so far: 2826.0
If we take 1554 away from 1779, we end up with 225.
Take the next digit (5) from the dividend and append it to 225, then repeat: 2255 / 259

Going ahead to step 7:
The number 259 fits into 2255 8 times, leaving a remainder of 183.
The next digit of our result is 8. 
Result so far: 28268.0
Deduct 2072 from 2255 and we're left with 183.
Fetch the next digit (6) from the dividend, attach it to 183 and continue: 1836 / 259

Going ahead to step 8:
259 goes into 1836 7 times with a remainder of 23.
The next digit of our result is 7. 
Result so far: 282687.0
The remainder is 23 after subtracting 1813 from 1836.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 9:
259 can be fit into 230 0 times, resulting in a remainder of 230.
Put 0 as the next digit of the answer. 
Result so far: 282687.0
Subtracting 0 from 230 leaves us with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

On to step 10:
259 can be fit into 2300 8 times, resulting in a remainder of 228.
Put 8 as the next digit of the answer. 
Result so far: 282687.08
If we subtract 2072 from 2300, we get 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Going ahead to step 11:
259 goes into 2280 8 times with a remainder of 208.
The next digit of our result is 8. 
Result so far: 282687.088
If we subtract 2072 from 2280, we get 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

The final outcome is 282687.088, with a leftover of 0.0208.