1. (10 points) Calculate: $(98 \times 76-679 \times 8) \div(24 \times 6+25 \times 25 \times 3-3)=$
【Analysis】There are parentheses, so calculate what's inside the parentheses first, then calculate what's outside the parentheses, and solve accordingly.
【Solution】Solution: $(98 \times 76-679 \times 8) \div(24 \times 6+25 \times 25 \times 3-3)$
$$
\begin{array}{l}
=(7448-5432) \div(144+1875-3) \\
=2016 \div 2016 \\
=1 ;
\end{array}
$$

Therefore, the answer is: 1 .