We divide 310308 by 78
Our goal is to divide 310308 by 78.

Let's proceed to step 1:
78 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 78

Step 2:
If we divide 31 by 78, we get 0 and a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 31 after subtracting 0 from 31.
Grab the next digit (0) from the dividend, add it to 31, then carry on: 310 / 78

Moving on to step 3:
The number 78 fits into 310 3 times, leaving a remainder of 76.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 234 from 310 to get 76.
Append the next digit (3) from the dividend to 76 and continue with: 763 / 78

Let's proceed to step 4:
If we divide 763 by 78, we get 9 and a remainder of 61.
Write down 9 as next digit of the result. 
Result so far: 39.0
Deduct 702 from 763 and we're left with 61.
Append the next digit (0) from the dividend to 61 and continue with: 610 / 78

Step 5:
78 goes into 610 7 times with a remainder of 64.
Write down 7 as next digit of the result. 
Result so far: 397.0
If we take 546 away from 610, we end up with 64.
Bring next digit (8) of the dividend behind the 64 and repeat the process: 648 / 78

On to step 6:
78 goes into 648 8 times with a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 3978.0
The remainder is 24 after subtracting 624 from 648.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 7:
If we divide 240 by 78, we get 3 and a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 3978.3
If we subtract 234 from 240, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 8:
78 can be fit into 60 0 times, resulting in a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 3978.3
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 9:
600 divided by 78 is 7 with a remainder of 54.
The next digit of our result is 7. 
Result so far: 3978.307
Deduct 546 from 600 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 10:
78 goes into 540 6 times with a remainder of 72.
The next digit of our result is 6. 
Result so far: 3978.3076
Deduct 468 from 540 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 11:
78 goes into 720 9 times with a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 3978.30769
If we subtract 702 from 720, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 12:
78 goes into 180 2 times with a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 3978.307692
If we take 156 away from 180, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 13:
The number 78 fits into 240 3 times, leaving a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 3978.3076923
Subtract 234 from 240 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 14:
60 divided by 78 is 0 with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 3978.3076923
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final result is 3978.3076923 with a remainder of 6e-08.