A rectangular botanical garden covering an area of 400 hectares, 800 meters long. How many meters is it wide?
一个占地400公顷的长方形植物园，长800米．它的宽是多少米？
<gadget id="calculator">400 * 10_000</gadget>
<output>4_000_000</output>

<gadget id="calculator">4_000_000 / 800</gadget>
<output>5_000</output>

<result>5_000</result>