The students play games around a circle with a diameter of 12 meters. If a student stands every 1.57 meters on the circle, how many students can stand in total?
同学们围着一个直径是12米的圆周做游戏，如果在圆周上每隔1.57米站一个同学，共能站几个同学？
<gadget id="calculator">12 / 1.57</gadget>
<output>7.643312</output>

<gadget id="calculator">3.14 * 7.643312</gadget>
<output>24</output>

<result>24</result>