A rectangular piece of paper with the 80th centimeter and the width of 40 centimeters can be cut into a maximum number of pieces of paper with a diameter of 10 centimeters.
一张第80厘米，宽40厘米的长方形纸片，最多裁减成多少个直径10厘米的纸片．
<gadget id="calculator">80 / 10</gadget>
<output>8</output>

<gadget id="calculator">40 / 10</gadget>
<output>4</output>

<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<result>32</result>