We divide 623439 by 78
Our goal is to divide 623439 by 78.

On to step 1:
When dividing 6 by 78, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 78

Step 2:
62 divided by 78 is 0 with a remainder of 62.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 62 after subtracting 0 from 62.
Grab the next digit (3) from the dividend, add it to 62, then carry on: 623 / 78

Going ahead to step 3:
When dividing 623 by 78, we get 7 with a remainder of 77.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 546 from 623, we get 77.
Fetch the next digit (4) from the dividend, attach it to 77 and continue: 774 / 78

Going ahead to step 4:
774 divided by 78 is 9 with a remainder of 72.
Record the quotient 9 as the next digit in the result. 
Result so far: 79.0
Deduct 702 from 774 and we're left with 72.
Append the next digit (3) from the dividend to 72 and continue with: 723 / 78

Step 5:
723 divided by 78 is 9 with a remainder of 21.
Use 9 as the next digit of our solution. 
Result so far: 799.0
Subtract 702 from 723 to get 21.
Bring next digit (9) of the dividend behind the 21 and repeat the process: 219 / 78

Let's proceed to step 6:
If we divide 219 by 78, we get 2 and a remainder of 63.
Use 2 as the next digit of our solution. 
Result so far: 7992.0
If we take 156 away from 219, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Advancing to step 7:
The number 78 fits into 630 8 times, leaving a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 7992.8
If we subtract 624 from 630, 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:
If we divide 60 by 78, we get 0 and a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 7992.8
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.

Going ahead to step 9:
78 can be fit into 600 7 times, resulting in a remainder of 54.
Use 7 as the next digit of our solution. 
Result so far: 7992.807
If we subtract 546 from 600, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 10:
If we divide 540 by 78, we get 6 and a remainder of 72.
The number 6 becomes the next digit in our result. 
Result so far: 7992.8076
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 11:
If we divide 720 by 78, we get 9 and a remainder of 18.
Use 9 as the next digit of our solution. 
Result so far: 7992.80769
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.

Moving on to step 12:
The number 78 fits into 180 2 times, leaving a remainder of 24.
The next digit of our result is 2. 
Result so far: 7992.807692
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.

Going ahead to step 13:
If we divide 240 by 78, we get 3 and a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 7992.8076923
Subtracting 234 from 240 leaves us with 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 14:
60 divided by 78 is 0 with a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 7992.8076923
If we subtract 0 from 60, we get 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 quotient of the division is 7992.8076923, and the remainder is 6e-08.