If a piece of plastic cloth with a length of 2 meters and a width of 1 meter is processed into a plastic bag with a length of 20 cm and a width of 10 cm, how many can be processed at most?
把一块长2米，宽1米的塑料布加工成长20厘米，宽10厘米的塑料袋，最多可以加工多少个？
<gadget id="calculator">20 * 10 * 2</gadget>
<output>400</output>

<gadget id="calculator">100 / 400</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">2 * 100 * 1 * (1/4)</gadget>
<output>50</output>

<result>50</result>