78672434 ÷ 9 
Let's see how many times 9 fits into 78672434.

Let's proceed to step 1:
When dividing 7 by 9, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 9

On to step 2:
9 can be fit into 78 8 times, resulting in a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 72 from 78 leaves us with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 9

Let's proceed to step 3:
9 can be fit into 66 7 times, resulting in a remainder of 3.
The next digit of our result is 7. 
Result so far: 87.0
If we take 63 away from 66, we end up with 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 9

Let's proceed to step 4:
37 divided by 9 is 4 with a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 874.0
Deduct 36 from 37 and we're left with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 9

On to step 5:
9 goes into 12 1 times with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 8741.0
If we subtract 9 from 12, we get 3.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 9

On to step 6:
If we divide 34 by 9, we get 3 and a remainder of 7.
The next digit of our result is 3. 
Result so far: 87413.0
If we subtract 27 from 34, we get 7.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 9

On to step 7:
9 goes into 73 8 times with a remainder of 1.
Write down 8 as next digit of the result. 
Result so far: 874138.0
The remainder is 1 after subtracting 72 from 73.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 9

Moving on to step 8:
9 can be fit into 14 1 times, resulting in a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 8741381.0
If we subtract 9 from 14, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
9 can be fit into 50 5 times, resulting in a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 8741381.5
Subtracting 45 from 50 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 10:
If we divide 50 by 9, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 8741381.55
Subtracting 45 from 50 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final outcome is 8741381.55, with a leftover of 0.005.