315968 ÷ 80 
Let's see how many times 80 fits into 315968.

Going ahead to step 1:
80 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 80

Moving on to step 2:
80 can be fit into 31 0 times, resulting in a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 31 leaves us with 31.
Grab the next digit (5) from the dividend, add it to 31, then carry on: 315 / 80

On to step 3:
The number 80 fits into 315 3 times, leaving a remainder of 75.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 240 away from 315, we end up with 75.
Take the next digit (9) from the dividend and append it to 75, then repeat: 759 / 80

Let's proceed to step 4:
If we divide 759 by 80, we get 9 and a remainder of 39.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
Deduct 720 from 759 and we're left with 39.
Take the next digit (6) from the dividend and append it to 39, then repeat: 396 / 80

On to step 5:
80 goes into 396 4 times with a remainder of 76.
The number 4 becomes the next digit in our result. 
Result so far: 394.0
If we subtract 320 from 396, we get 76.
Bring next digit (8) of the dividend behind the 76 and repeat the process: 768 / 80

Advancing to step 6:
The number 80 fits into 768 9 times, leaving a remainder of 48.
Record the quotient 9 as the next digit in the result. 
Result so far: 3949.0
The remainder is 48 after subtracting 720 from 768.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 7:
80 goes into 480 6 times with a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 3949.6
Subtract 480 from 480 to 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.

Step 8:
When dividing 0 by 80, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 3949.6
Subtracting 0 from 0 leaves us 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.

Let's proceed to step 9:
0 divided by 80 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 3949.6
Subtract 0 from 0 to 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.

After the division, we end up with 3949.6 and a remainder of 0.0.