During the summer vacation, Zhuang Zhuang and his parents flew to visit his grandparents. The airport has a rectangular runway with a length of 4000 meters and a width of 300 meters. How many hectares does this runway cover?
暑假期间，壮壮和爸爸妈妈坐飞机去看望爷爷奶奶．飞机场有一条长4000米，宽300米的长方形跑道，这条跑道占地多少公顷？
<gadget id="calculator">4_000 * 300</gadget>
<output>1_200_000</output>

<gadget id="calculator">1_200_000 / 10_000</gadget>
<output>120</output>

<result>120</result>