A bulldozer can bulldoze 396 cubic meters in 12 hours. According to this calculation, how many hours will it take to bulldoze 2277 cubic meters?
一抬推土机12小时推土396立方米，照这样计算，要推土2277立方米，需要多少小时？
<gadget id="calculator">396 / 12</gadget>
<output>33</output>

<gadget id="calculator">2_277 / 33</gadget>
<output>69</output>

<result>69</result>