Let's divide 278440 by 78
We want to divide 278440 by 78.

Going ahead to step 1:
78 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Grab the next digit (7) from the dividend, add it to 2, then carry on: 27 / 78

Advancing to step 2:
If we divide 27 by 78, we get 0 and a remainder of 27.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 27 after subtracting 0 from 27.
Bring next digit (8) of the dividend behind the 27 and repeat the process: 278 / 78

Step 3:
When dividing 278 by 78, we get 3 with a remainder of 44.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 44 after subtracting 234 from 278.
Bring next digit (4) of the dividend behind the 44 and repeat the process: 444 / 78

On to step 4:
78 goes into 444 5 times with a remainder of 54.
Write down 5 as next digit of the result. 
Result so far: 35.0
Subtracting 390 from 444 leaves us with 54.
Take the next digit (4) from the dividend and append it to 54, then repeat: 544 / 78

Let's proceed to step 5:
544 divided by 78 is 6 with a remainder of 76.
Put 6 as the next digit of the answer. 
Result so far: 356.0
The remainder is 76 after subtracting 468 from 544.
Fetch the next digit (0) from the dividend, attach it to 76 and continue: 760 / 78

Step 6:
When dividing 760 by 78, we get 9 with a remainder of 58.
The next digit of our result is 9. 
Result so far: 3569.0
Subtract 702 from 760 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 7:
When dividing 580 by 78, we get 7 with a remainder of 34.
The next digit of our result is 7. 
Result so far: 3569.7
The remainder is 34 after subtracting 546 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 8:
The number 78 fits into 340 4 times, leaving a remainder of 28.
The number 4 becomes the next digit in our result. 
Result so far: 3569.74
Deduct 312 from 340 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 9:
78 goes into 280 3 times with a remainder of 46.
Put 3 as the next digit of the answer. 
Result so far: 3569.743
Subtract 234 from 280 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 10:
78 can be fit into 460 5 times, resulting in a remainder of 70.
Use 5 as the next digit of our solution. 
Result so far: 3569.7435
Deduct 390 from 460 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 11:
When dividing 700 by 78, we get 8 with a remainder of 76.
Put 8 as the next digit of the answer. 
Result so far: 3569.74358
Subtract 624 from 700 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 12:
If we divide 760 by 78, we get 9 and a remainder of 58.
Use 9 as the next digit of our solution. 
Result so far: 3569.743589
If we take 702 away from 760, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Advancing to step 13:
580 divided by 78 is 7 with a remainder of 34.
The next digit of our result is 7. 
Result so far: 3569.7435897
Subtract 546 from 580 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 14:
The number 78 fits into 340 4 times, leaving a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 3569.74358974
Deduct 312 from 340 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

The final result is 3569.74358974 with a remainder of 2.8e-08.