A dictionary has 516 pages, which is 6 times that of a storybook. How many pages does this storybook have? (List the formulas that contain the unknown number X, and then solve them.)
一本字典有516页，是一本故事书的6倍，这本故事书有多少页？(列含有未知数X的算式，再解答出来．)
<gadget id="calculator">516 / 6</gadget>
<output>86</output>

<result>86</result>