1. **State the problem:** Calculate the product of 6 and 7. 2. **Formula used:** Multiplication of two numbers is given by $a \times b$. 3. **Calculate:** $$6 \times 7 = 42$$ 4. **Explanation:** Multiplying 6 by 7 means adding 6 seven times or 7 six times, which equals 42. **Final answer:** $42$