It takes 10 hours for the express train to go from Beijing to Shanghai, and 6 hours for the high-speed train to travel from Shanghai to Beijing. The two trains depart from opposite directions at the same time. When the train meets, the high-speed train is still 300 kilometers away from Beijing. How many kilometers are the distance between the two stations?
特快列车从北京到上海需要10小时，高铁从上海开往北京需要6小时，两车同时从两站相向开出，相遇时高铁离北京还有300千米，两站相距多少千米？
<gadget id="calculator">10 + 6</gadget>
<output>16</output>

<gadget id="calculator">10 / 16</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 - (5/8)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">300 / (3/8)</gadget>
<output>800</output>

<result>800</result>