72678855 ÷ 12 
We want to figure out the number of times 72678855 can be divided by 12.

On to step 1:
If we divide 7 by 12, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 12

Step 2:
When dividing 72 by 12, we get 6 with a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Deduct 72 from 72 and we're left with 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 12

Advancing to step 3:
When dividing 6 by 12, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 60.0
If we take 0 away from 6, we end up with 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 12

Moving on to step 4:
If we divide 67 by 12, we get 5 and a remainder of 7.
Record the quotient 5 as the next digit in the result. 
Result so far: 605.0
Subtracting 60 from 67 leaves us with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 12

Let's proceed to step 5:
When dividing 78 by 12, we get 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 6056.0
The remainder is 6 after subtracting 72 from 78.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 12

Step 6:
68 divided by 12 is 5 with a remainder of 8.
Put 5 as the next digit of the answer. 
Result so far: 60565.0
Subtract 60 from 68 to get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 12

Moving on to step 7:
12 can be fit into 85 7 times, resulting in a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 605657.0
If we take 84 away from 85, we end up with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 12

Let's proceed to step 8:
The number 12 fits into 15 1 times, leaving a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 6056571.0
If we subtract 12 from 15, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 9:
The number 12 fits into 30 2 times, leaving a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 6056571.2
Subtracting 24 from 30 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 10:
12 can be fit into 60 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 6056571.25
Deduct 60 from 60 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 11:
12 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 6056571.25
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.

Let's proceed to step 12:
If we divide 0 by 12, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 6056571.25
Subtracting 0 from 0 leaves us with 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 6056571.25, with a leftover of 0.0.