We divide 315325 by 3
Let's see how many times 3 fits into 315325.

Let's proceed to step 1:
The number 3 fits into 3 1 times, leaving a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 3 from 3 to get 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 3

On to step 2:
3 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 10.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 3

Step 3:
The number 3 fits into 15 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 105.0
Deduct 15 from 15 and we're left with 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 3

Moving on to step 4:
3 divided by 3 is 1 with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1051.0
If we take 3 away from 3, we end up with 0.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 3

Moving on to step 5:
2 divided by 3 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 10510.0
If we subtract 0 from 2, we get 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 3

On to step 6:
When dividing 25 by 3, we get 8 with a remainder of 1.
Write down 8 as next digit of the result. 
Result so far: 105108.0
If we take 24 away from 25, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
3 can be fit into 10 3 times, resulting in a remainder of 1.
The next digit of our result is 3. 
Result so far: 105108.3
If we subtract 9 from 10, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 8:
If we divide 10 by 3, we get 3 and a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 105108.33
Deduct 9 from 10 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final outcome is 105108.33, with a leftover of 0.001.