78937658 ÷ 313 
Our goal is to divide 78937658 by 313.

Step 1:
The number 313 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 313

Let's proceed to step 2:
313 goes into 78 0 times with a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Fetch the next digit (9) from the dividend, attach it to 78 and continue: 789 / 313

On to step 3:
If we divide 789 by 313, we get 2 and a remainder of 163.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 626 from 789 leaves us with 163.
Include the next digit (3) from the dividend after 163, then repeat: 1633 / 313

Moving on to step 4:
When dividing 1633 by 313, we get 5 with a remainder of 68.
The number 5 becomes the next digit in our result. 
Result so far: 25.0
If we take 1565 away from 1633, we end up with 68.
Bring next digit (7) of the dividend behind the 68 and repeat the process: 687 / 313

Moving on to step 5:
If we divide 687 by 313, we get 2 and a remainder of 61.
Write down 2 as next digit of the result. 
Result so far: 252.0
If we take 626 away from 687, we end up with 61.
Bring next digit (6) of the dividend behind the 61 and repeat the process: 616 / 313

On to step 6:
If we divide 616 by 313, we get 1 and a remainder of 303.
Put 1 as the next digit of the answer. 
Result so far: 2521.0
Subtract 313 from 616 to get 303.
Bring next digit (5) of the dividend behind the 303 and repeat the process: 3035 / 313

Going ahead to step 7:
When dividing 3035 by 313, we get 9 with a remainder of 218.
Put 9 as the next digit of the answer. 
Result so far: 25219.0
Deduct 2817 from 3035 and we're left with 218.
Include the next digit (8) from the dividend after 218, then repeat: 2188 / 313

Advancing to step 8:
The number 313 fits into 2188 6 times, leaving a remainder of 310.
Record the quotient 6 as the next digit in the result. 
Result so far: 252196.0
If we take 1878 away from 2188, we end up with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Let's proceed to step 9:
313 can be fit into 3100 9 times, resulting in a remainder of 283.
Write down 9 as next digit of the result. 
Result so far: 252196.9
Deduct 2817 from 3100 and we're left with 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

On to step 10:
If we divide 2830 by 313, we get 9 and a remainder of 13.
Write down 9 as next digit of the result. 
Result so far: 252196.99
If we take 2817 away from 2830, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Our division results in 252196.99 with a remaining 0.013.