4 truckloads of cement are shipped to the construction site, each weighing 144 kg. If the cement is transported away with a trolley with a load of 9 kg, how many times should it be transported at least?
工地运来4车水泥，每车重144千克，如果用载重为9千克的手推车将这些水泥运走，至少需要运多少次？
<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">144 * (4/9)</gadget>
<output>64</output>

<result>64</result>