Cut a piece of rectangular paper with a length of 36 cm and a width of 9 cm into a square with the same size and as large an area as possible. If there is no paper left, how many pieces can be cut at least?
把一张长36厘米，宽9厘米的长方形纸，裁成同样大小，面积尽可能大的正方形，纸没有剩余，至少可以裁多少个？
<gadget id="calculator">36 / 9</gadget>
<output>4</output>

<gadget id="calculator">9 / 9</gadget>
<output>1</output>

<gadget id="calculator">4 * 1</gadget>
<output>4</output>

<result>4</result>