Consider this problem.

To solve the problem of how many 178 kilogram books can fit into a box that can hold 2818 kilograms, you will need to **divide** the total weight capacity of the box by the weight of one book.

So, you would perform the operation:

\[
\text{Number of books} = \frac{\text{Total weight capacity}}{\text{Weight of one book}} = \frac{2818 \text{ kg}}{178 \text{ kg}}
\]

Now, let's calculate it:

\[
\frac{2818}{178} \approx 15.84
\]

Since you can't have a fraction of a book in this context, you would take the whole number part, which is 15. Therefore, the box can hold **15 books**.

So the answers are:
- You will **divide** to solve this problem.
- The box can hold **15 books**.