1. **State the problem:** Calculate the product of 45 and 37.
2. **Formula used:** Multiplication of two numbers $a$ and $b$ is given by $a \times b$.
3. **Calculate:**
$$45 \times 37$$
4. **Break down the multiplication:**
$$45 \times 37 = 45 \times (30 + 7) = 45 \times 30 + 45 \times 7$$
5. **Calculate each part:**
$$45 \times 30 = 1350$$
$$45 \times 7 = 315$$
6. **Add the results:**
$$1350 + 315 = 1665$$
7. **Final answer:**
$$\boxed{1665}$$
Multiply 45 37 59A1B0
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