The third grade students are doing intercourse exercises, lined up in 12 rows, with 9 people standing in each row, if there are 6 people standing in each row, how many rows can they stand?
三年级同学做间操，排成12行，每行站9人，如果每行站6人，可以站几行？
<gadget id="calculator">12 / 6</gadget>
<output>2</output>

<gadget id="calculator">9 * 2</gadget>
<output>18</output>

<result>18</result>