We look at the division of 450439 by 78 
Our goal is to divide 450439 by 78.

Advancing to step 1:
If we divide 4 by 78, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 78

Advancing to step 2:
78 goes into 45 0 times with a remainder of 45.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 45 leaves us with 45.
Bring next digit (0) of the dividend behind the 45 and repeat the process: 450 / 78

Step 3:
If we divide 450 by 78, we get 5 and a remainder of 60.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 390 from 450 leaves us with 60.
Append the next digit (4) from the dividend to 60 and continue with: 604 / 78

Moving on to step 4:
When dividing 604 by 78, we get 7 with a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 57.0
Subtracting 546 from 604 leaves us with 58.
Include the next digit (3) from the dividend after 58, then repeat: 583 / 78

On to step 5:
583 divided by 78 is 7 with a remainder of 37.
Write down 7 as next digit of the result. 
Result so far: 577.0
Deduct 546 from 583 and we're left with 37.
Grab the next digit (9) from the dividend, add it to 37, then carry on: 379 / 78

Moving on to step 6:
78 goes into 379 4 times with a remainder of 67.
Put 4 as the next digit of the answer. 
Result so far: 5774.0
If we subtract 312 from 379, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 7:
670 divided by 78 is 8 with a remainder of 46.
The next digit of our result is 8. 
Result so far: 5774.8
If we take 624 away from 670, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 8:
The number 78 fits into 460 5 times, leaving a remainder of 70.
Put 5 as the next digit of the answer. 
Result so far: 5774.85
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.

On to step 9:
78 goes into 700 8 times with a remainder of 76.
The next digit of our result is 8. 
Result so far: 5774.858
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 10:
If we divide 760 by 78, we get 9 and a remainder of 58.
The next digit of our result is 9. 
Result so far: 5774.8589
Deduct 702 from 760 and we're left 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.

Moving on to step 11:
When dividing 580 by 78, we get 7 with a remainder of 34.
Write down 7 as next digit of the result. 
Result so far: 5774.85897
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.

Let's proceed to step 12:
If we divide 340 by 78, we get 4 and a remainder of 28.
Write down 4 as next digit of the result. 
Result so far: 5774.858974
If we take 312 away from 340, we end up 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.

Let's proceed to step 13:
280 divided by 78 is 3 with a remainder of 46.
The next digit of our result is 3. 
Result so far: 5774.8589743
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.

On to step 14:
If we divide 460 by 78, we get 5 and a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 5774.85897435
The remainder is 70 after subtracting 390 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final outcome is 5774.85897435, with a leftover of 7e-08.