The department store shipped 324 pairs of sneakers and packed them in cardboard boxes of the same size. If 2 cartons can hold 72 pairs of sneakers, how many cartons should the sneakers shipped from the store be packed in total?
百货商店运来324双球鞋，装在同样大小的纸箱里，如果2个纸箱可以装球鞋72双，那么商店运来的球鞋一共要装在多少个纸箱里？
<gadget id="calculator">72 / 2</gadget>
<output>36</output>

<gadget id="calculator">324 / 36</gadget>
<output>9</output>

<result>9</result>