Let's divide 663507 by 78
We want to figure out the number of times 663507 can be divided by 78.

Step 1:
When dividing 6 by 78, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 78

Step 2:
If we divide 66 by 78, we get 0 and a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Fetch the next digit (3) from the dividend, attach it to 66 and continue: 663 / 78

Step 3:
If we divide 663 by 78, we get 8 and a remainder of 39.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 624 from 663 leaves us with 39.
Fetch the next digit (5) from the dividend, attach it to 39 and continue: 395 / 78

Moving on to step 4:
If we divide 395 by 78, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 85.0
The remainder is 5 after subtracting 390 from 395.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 78

Advancing to step 5:
When dividing 50 by 78, we get 0 with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 850.0
Deduct 0 from 50 and we're left with 50.
Append the next digit (7) from the dividend to 50 and continue with: 507 / 78

Step 6:
78 goes into 507 6 times with a remainder of 39.
Record the quotient 6 as the next digit in the result. 
Result so far: 8506.0
Subtracting 468 from 507 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 7:
78 can be fit into 390 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 8506.5
If we subtract 390 from 390, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
78 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 8506.5
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
78 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 8506.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 8506.5, with a leftover of 0.0.