A garment factory produces a fashion. Originally, each piece used 3.8 meters of cloth, but now each piece saves 0.2 meters of cloth. It used to make 1,800 pieces of fashion cloth, how many pieces can it make now? (solution in two ways)
服装厂生产一种时装，原来每件用布3.8米，现在每件节省用布0.2米，原来做1800件时装的布，现在可以做多少件？(用两种方法解)
<gadget id="calculator">3.8 - 0.2</gadget>
<output>3.6</output>

<gadget id="calculator">1_800 / 3.6</gadget>
<output>500</output>

<gadget id="calculator">3.8 * 500</gadget>
<output>1_900</output>

<result>1_900</result>