Vertical Format Mathematics: Subtracting 8 from 76

$\begin{aligned} &76 \\ -& \\ &~~8 \\ &\underline{\phantom{776}} & \\ \end{aligned}$

Let's solve the subtraction problem:

When subtracting two numbers vertically, begin with the rightmost column, which involves the ones.
Step 1: Subtract the ones place digits: 6 - 8. Since 6 is less than 8, we cannot subtract directly. Therefore, we need to borrow 1 ten (equivalent to 10 ones) from the tens place.
Step 2: After borrowing, the tens digit of 76 (7) reduces by 1, becoming 6, and the ones digit gets 10 more, making it 16.
Step 3: Now, subtract the ones place: 16 - 8 = 8.
Step 4: Then, subtract the tens place: 6 - 0 = 6. Recall that we subtracted 1 ten earlier.
Combine the two results for the final answer: 68.

Therefore, the solution to the subtraction problem is $76 - 8 = 68$.