We look at the division of 25217535 by 452 
We want to figure out the number of times 25217535 can be divided by 452.

Let's proceed to step 1:
When dividing 2 by 452, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 452

Step 2:
452 goes into 25 0 times with a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Grab the next digit (2) from the dividend, add it to 25, then carry on: 252 / 452

Moving on to step 3:
252 divided by 452 is 0 with a remainder of 252.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 252 to get 252.
Append the next digit (1) from the dividend to 252 and continue with: 2521 / 452

On to step 4:
452 goes into 2521 5 times with a remainder of 261.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 2260 from 2521 to get 261.
Take the next digit (7) from the dividend and append it to 261, then repeat: 2617 / 452

On to step 5:
When dividing 2617 by 452, we get 5 with a remainder of 357.
Write down 5 as next digit of the result. 
Result so far: 55.0
Subtract 2260 from 2617 to get 357.
Grab the next digit (5) from the dividend, add it to 357, then carry on: 3575 / 452

Advancing to step 6:
When dividing 3575 by 452, we get 7 with a remainder of 411.
The number 7 becomes the next digit in our result. 
Result so far: 557.0
Subtracting 3164 from 3575 leaves us with 411.
Bring next digit (3) of the dividend behind the 411 and repeat the process: 4113 / 452

On to step 7:
452 goes into 4113 9 times with a remainder of 45.
Use 9 as the next digit of our solution. 
Result so far: 5579.0
Subtracting 4068 from 4113 leaves us with 45.
Bring next digit (5) of the dividend behind the 45 and repeat the process: 455 / 452

Advancing to step 8:
452 goes into 455 1 times with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 55791.0
Subtracting 452 from 455 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 9:
452 goes into 30 0 times with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 55791.0
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 10:
300 divided by 452 is 0 with a remainder of 300.
Use 0 as the next digit of our solution. 
Result so far: 55791.0
Subtract 0 from 300 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

The final outcome is 55791.0, with a leftover of 0.3.