7. (10 points) Calculate: $(1000+15+314) \times(201+360+110)+(1000-201-360-110) \times(15+314)$ $=$ . $\qquad$
【Analysis】First, according to the distributive law of multiplication, convert $(1000+15+314) \times(201+360+110)$ into $1000 \times (201+360+110)+(15+314) \times(201+360+110)$, and then apply the distributive law of multiplication again to find the value of the expression $(15+314) \times(201+360+110)+(1000-201-360-110) \times(15+314)$; finally, add the result obtained to $1000 \times(201+360+110)$ to find the value of the expression.

【Solution】Solution: $(1000+15+314) \times(201+360+110)+(1000-201-360-110) \times(15+314)$
$$
\begin{array}{l}
=1000 \times(201+360+110)+(15+314) \times(201+360+110))+(1000-201-360-110) \\
\times(15+314) \\
=1000 \times(201+360+110)+(15+314) \times[(201+360+110))+(1000-201-360-110)] \\
=1000 \times 671+329 \times 1000 \\
=1000 \times(671+329) \\
=1000 \times 1000 \\
=1000000
\end{array}
$$

Therefore, the answer is: 1000000.