1. The problem is to calculate the product of 9 and 1000. 2. The formula for multiplication is $a \times b = c$, where $a$ and $b$ are numbers and $c$ is their product. 3. Here, $a = 9$ and $b = 1000$. 4. Multiply 9 by 1000: $$9 \times 1000 = 9000$$ 5. So, the answer is 9000.