An apple orchard is a rectangle with a length of 900 meters and a width of 600 meters. How many hectares does it cover?
一个苹果园里是长为900米，宽为600米的长方形，它的占地面积是多少公顷？
<gadget id="calculator">900 * 600</gadget>
<output>540_000</output>

<gadget id="calculator">540_000 / 10_000</gadget>
<output>54</output>

<result>54</result>