403305 ÷ 78 
We want to divide 403305 by 78.

Going ahead to step 1:
The number 78 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 78

On to step 2:
78 can be fit into 40 0 times, resulting in a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 40 and we're left with 40.
Grab the next digit (3) from the dividend, add it to 40, then carry on: 403 / 78

Let's proceed to step 3:
When dividing 403 by 78, we get 5 with a remainder of 13.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtract 390 from 403 to get 13.
Fetch the next digit (3) from the dividend, attach it to 13 and continue: 133 / 78

Advancing to step 4:
78 can be fit into 133 1 times, resulting in a remainder of 55.
Use 1 as the next digit of our solution. 
Result so far: 51.0
If we subtract 78 from 133, we get 55.
Take the next digit (0) from the dividend and append it to 55, then repeat: 550 / 78

Going ahead to step 5:
78 goes into 550 7 times with a remainder of 4.
The next digit of our result is 7. 
Result so far: 517.0
Deduct 546 from 550 and we're left with 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 78

Step 6:
45 divided by 78 is 0 with a remainder of 45.
Write down 0 as next digit of the result. 
Result so far: 5170.0
If we take 0 away from 45, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 7:
450 divided by 78 is 5 with a remainder of 60.
Put 5 as the next digit of the answer. 
Result so far: 5170.5
If we take 390 away from 450, 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.

On to step 8:
78 can be fit into 600 7 times, resulting in a remainder of 54.
Record the quotient 7 as the next digit in the result. 
Result so far: 5170.57
The remainder is 54 after subtracting 546 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 9:
The number 78 fits into 540 6 times, leaving a remainder of 72.
Put 6 as the next digit of the answer. 
Result so far: 5170.576
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.

Step 10:
The number 78 fits into 720 9 times, leaving a remainder of 18.
Record the quotient 9 as the next digit in the result. 
Result so far: 5170.5769
Subtract 702 from 720 to 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.

On to step 11:
78 goes into 180 2 times with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 5170.57692
If we subtract 156 from 180, we get 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 12:
78 goes into 240 3 times with a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 5170.576923
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.

Let's proceed to step 13:
78 goes into 60 0 times with a remainder of 60.
The next digit of our result is 0. 
Result so far: 5170.576923
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.

Moving on to step 14:
78 goes into 600 7 times with a remainder of 54.
Record the quotient 7 as the next digit in the result. 
Result so far: 5170.57692307
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.

The quotient of the division is 5170.57692307, and the remainder is 5.4e-08.