A typist typed 504 characters in 6 minutes, and it took 15 minutes to type an article. How many words are there in this article?
一个打字员6分钟打504个字，打一篇文章用了15分钟．这篇文章有多少个字？
<gadget id="calculator">504 / 6</gadget>
<output>84</output>

<gadget id="calculator">84 * 15</gadget>
<output>1_260</output>

<result>1_260</result>