1. The problem is to calculate the product of 40 and 5. 2. The formula for multiplication is: $$a \times b = c$$ where $a$ and $b$ are numbers and $c$ is their product. 3. Applying the formula: $$40 \times 5 = 200$$ 4. Multiplication means adding the number 40 five times or adding the number 5 forty times. 5. Therefore, the final answer is 200.