Xiaohua enters a manuscript, and the entered (5/7) is exactly 500 words. How many words are there in this manuscript?
小华录入一份稿件，录入了(5/7)恰好是500字，这份稿件共有多少字？
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">500 / (5/7)</gadget>
<output>700</output>

<result>700</result>