$(4+5) \div 3 \times 6$

Step 1 ：First, we need to solve the operation inside the parentheses, which is 4 + 5. This gives us \(4 + 5 = 9\).

Step 2 ：Then, we divide the result by 3. This gives us \(\frac{9}{3} = 3\).

Step 3 ：Finally, we multiply the result by 6. This gives us \(3 \times 6 = 18\).

Step 4 ：The final answer is \(\boxed{18}\).