We're dividing 315252 by 25 
We want to figure out the number of times 315252 can be divided by 25.

Going ahead to step 1:
25 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 25

Going ahead to step 2:
31 divided by 25 is 1 with a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 25 from 31 leaves us with 6.
Include the next digit (5) from the dividend after 6, then repeat: 65 / 25

On to step 3:
If we divide 65 by 25, we get 2 and a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we take 50 away from 65, we end up with 15.
Fetch the next digit (2) from the dividend, attach it to 15 and continue: 152 / 25

Let's proceed to step 4:
152 divided by 25 is 6 with a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 126.0
The remainder is 2 after subtracting 150 from 152.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 25

Going ahead to step 5:
25 goes into 25 1 times with a remainder of 0.
The next digit of our result is 1. 
Result so far: 1261.0
If we take 25 away from 25, we end up with 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 25

On to step 6:
25 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 12610.0
If we subtract 0 from 2, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 7:
20 divided by 25 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 12610.0
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
If we divide 200 by 25, we get 8 and a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 12610.08
The remainder is 0 after subtracting 200 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
25 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 12610.08
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
25 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 12610.08
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 12610.08, with a leftover of 0.0.