We look at the division of 315194 by 99 
We're looking to find how many times 99 goes into 315194.

Going ahead to step 1:
The number 99 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 99

On to step 2:
31 divided by 99 is 0 with a remainder of 31.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Grab the next digit (5) from the dividend, add it to 31, then carry on: 315 / 99

Advancing to step 3:
99 goes into 315 3 times with a remainder of 18.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 18 after subtracting 297 from 315.
Grab the next digit (1) from the dividend, add it to 18, then carry on: 181 / 99

Moving on to step 4:
181 divided by 99 is 1 with a remainder of 82.
Write down 1 as next digit of the result. 
Result so far: 31.0
If we subtract 99 from 181, we get 82.
Bring next digit (9) of the dividend behind the 82 and repeat the process: 829 / 99

Going ahead to step 5:
When dividing 829 by 99, we get 8 with a remainder of 37.
Write down 8 as next digit of the result. 
Result so far: 318.0
Deduct 792 from 829 and we're left with 37.
Append the next digit (4) from the dividend to 37 and continue with: 374 / 99

Moving on to step 6:
If we divide 374 by 99, we get 3 and a remainder of 77.
The number 3 becomes the next digit in our result. 
Result so far: 3183.0
If we take 297 away from 374, we end up with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Going ahead to step 7:
If we divide 770 by 99, we get 7 and a remainder of 77.
The next digit of our result is 7. 
Result so far: 3183.7
If we take 693 away from 770, we end up with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

On to step 8:
99 goes into 770 7 times with a remainder of 77.
The next digit of our result is 7. 
Result so far: 3183.77
If we take 693 away from 770, we end up with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

After the division, we end up with 3183.77 and a remainder of 0.077.