A rectangular botanical garden covering an area of 40 hectares, 800 meters long. How many meters is it wide?
一个占地40公顷的长方形的植物园，长800米．它的宽是多少米？
<gadget id="calculator">40 * 10_000</gadget>
<output>400_000</output>

<gadget id="calculator">400_000 / 800</gadget>
<output>500</output>

<result>500</result>