On a map with a scale of 1:50000, the floor plan of a certain village is measured, with a length of 5 cm and a width of 4 cm. How many square meters does this village actually occupy?
在比例尺是1：50000的图上，量得某村的平面图，长5cm，宽4cm，这个村实际占地面积是多少平方米？
<gadget id="calculator">1 / 50_000</gadget>
<output>1/50_000 = around 0.00002</output>

<gadget id="calculator">5 / (1/50_000) / 100</gadget>
<output>2_500</output>

<gadget id="calculator">4 / (1/50_000) / 100</gadget>
<output>2_000</output>

<gadget id="calculator">2_500 * 2_000</gadget>
<output>5_000_000</output>

<result>5_000_000</result>