We look at the division of 313604 by 25 
We want to figure out the number of times 313604 can be divided by 25.

Advancing to step 1:
The number 25 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 25

Advancing to step 2:
25 can be fit into 31 1 times, resulting in a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 25 from 31 leaves us with 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 25

Advancing to step 3:
63 divided by 25 is 2 with a remainder of 13.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtracting 50 from 63 leaves us with 13.
Include the next digit (6) from the dividend after 13, then repeat: 136 / 25

On to step 4:
136 divided by 25 is 5 with a remainder of 11.
Use 5 as the next digit of our solution. 
Result so far: 125.0
Subtracting 125 from 136 leaves us with 11.
Grab the next digit (0) from the dividend, add it to 11, then carry on: 110 / 25

On to step 5:
25 goes into 110 4 times with a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 1254.0
Subtract 100 from 110 to get 10.
Append the next digit (4) from the dividend to 10 and continue with: 104 / 25

On to step 6:
When dividing 104 by 25, we get 4 with a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 12544.0
The remainder is 4 after subtracting 100 from 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
When dividing 40 by 25, we get 1 with a remainder of 15.
Put 1 as the next digit of the answer. 
Result so far: 12544.1
Deduct 25 from 40 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 8:
150 divided by 25 is 6 with a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 12544.16
Deduct 150 from 150 and we're left 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.

On to step 9:
The number 25 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 12544.16
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.

Moving on to step 10:
When dividing 0 by 25, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 12544.16
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.

After the division, we end up with 12544.16 and a remainder of 0.0.