We divide 315809 by 799
We're looking to find how many times 799 goes into 315809.

Advancing to step 1:
When dividing 3 by 799, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 799

Moving on to step 2:
799 goes into 31 0 times with a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 31, we end up with 31.
Append the next digit (5) from the dividend to 31 and continue with: 315 / 799

Step 3:
When dividing 315 by 799, we get 0 with a remainder of 315.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 315, we end up with 315.
Grab the next digit (8) from the dividend, add it to 315, then carry on: 3158 / 799

Step 4:
799 can be fit into 3158 3 times, resulting in a remainder of 761.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 2397 from 3158, we get 761.
Fetch the next digit (0) from the dividend, attach it to 761 and continue: 7610 / 799

Let's proceed to step 5:
799 can be fit into 7610 9 times, resulting in a remainder of 419.
Put 9 as the next digit of the answer. 
Result so far: 39.0
The remainder is 419 after subtracting 7191 from 7610.
Append the next digit (9) from the dividend to 419 and continue with: 4199 / 799

Moving on to step 6:
799 goes into 4199 5 times with a remainder of 204.
The next digit of our result is 5. 
Result so far: 395.0
Subtract 3995 from 4199 to get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Going ahead to step 7:
When dividing 2040 by 799, we get 2 with a remainder of 442.
The next digit of our result is 2. 
Result so far: 395.2
The remainder is 442 after subtracting 1598 from 2040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

Advancing to step 8:
799 can be fit into 4420 5 times, resulting in a remainder of 425.
Put 5 as the next digit of the answer. 
Result so far: 395.25
Subtracting 3995 from 4420 leaves us with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Step 9:
If we divide 4250 by 799, we get 5 and a remainder of 255.
Record the quotient 5 as the next digit in the result. 
Result so far: 395.255
If we subtract 3995 from 4250, we get 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

The quotient of the division is 395.255, and the remainder is 0.0255.