We're dividing 25456216 by 717 
The aim is to understand the frequency of 717 in 25456216.

Going ahead to step 1:
The number 717 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 717

Let's proceed to step 2:
When dividing 25 by 717, we get 0 with a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Fetch the next digit (4) from the dividend, attach it to 25 and continue: 254 / 717

Step 3:
If we divide 254 by 717, we get 0 and a remainder of 254.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 254, we end up with 254.
Take the next digit (5) from the dividend and append it to 254, then repeat: 2545 / 717

On to step 4:
If we divide 2545 by 717, we get 3 and a remainder of 394.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 2151 from 2545, we get 394.
Bring next digit (6) of the dividend behind the 394 and repeat the process: 3946 / 717

Advancing to step 5:
When dividing 3946 by 717, we get 5 with a remainder of 361.
Write down 5 as next digit of the result. 
Result so far: 35.0
If we subtract 3585 from 3946, we get 361.
Grab the next digit (2) from the dividend, add it to 361, then carry on: 3612 / 717

Moving on to step 6:
If we divide 3612 by 717, we get 5 and a remainder of 27.
Record the quotient 5 as the next digit in the result. 
Result so far: 355.0
If we subtract 3585 from 3612, we get 27.
Append the next digit (1) from the dividend to 27 and continue with: 271 / 717

Step 7:
271 divided by 717 is 0 with a remainder of 271.
The next digit of our result is 0. 
Result so far: 3550.0
If we subtract 0 from 271, we get 271.
Grab the next digit (6) from the dividend, add it to 271, then carry on: 2716 / 717

Step 8:
The number 717 fits into 2716 3 times, leaving a remainder of 565.
Put 3 as the next digit of the answer. 
Result so far: 35503.0
If we subtract 2151 from 2716, we get 565.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5650, and continue the process.

Advancing to step 9:
717 goes into 5650 7 times with a remainder of 631.
Record the quotient 7 as the next digit in the result. 
Result so far: 35503.7
Subtract 5019 from 5650 to get 631.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6310, and continue the process.

Moving on to step 10:
The number 717 fits into 6310 8 times, leaving a remainder of 574.
The number 8 becomes the next digit in our result. 
Result so far: 35503.78
The remainder is 574 after subtracting 5736 from 6310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

Going ahead to step 11:
5740 divided by 717 is 8 with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 35503.788
Deduct 5736 from 5740 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 35503.788, with a leftover of 0.0004.