$(6-4) \times 49 \div 7$

Step 1 ：Perform subtraction inside parentheses: \( (6-4) \times 49 \div 7 \) becomes \( 2 \times 49 \div 7 \)

Step 2 ：Perform multiplication and division: \( 2 \times 49 \div 7 \) becomes \( 2 \times 7 \)

Step 3 ：Calculate the final result: \( 2 \times 7 \) becomes \( \boxed{14} \)