1. The problem is to multiply 200 by 9. 2. The formula for multiplication is $a \times b = c$, where $a$ and $b$ are numbers and $c$ is the product. 3. Here, $a = 200$ and $b = 9$. 4. Multiply the numbers: $$200 \times 9 = 1800$$ 5. So, the answer is 1800.