A piece of land is 800 meters long and 4 times as wide. How many hectares does this piece of land have?
一块地长800米，是宽的4倍，这块地有多少公顷？
<gadget id="calculator">800 / 4</gadget>
<output>200</output>

<gadget id="calculator">200 * 800</gadget>
<output>160_000</output>

<gadget id="calculator">160_000 / 10_000</gadget>
<output>16</output>

<result>16</result>