A rectangular piece of land is drawn on the drawing at a scale of 1:1,000. The length is 8 cm and the width is 4.5 cm. What is the actual area of the land in square meters?
一块长方形地，按1：1,000的比例尺把它画在图纸上，长是8厘米，宽是4.5厘米，这块地的实际面积是多少平方米？
<gadget id="calculator">1 / 1_000</gadget>
<output>1/1_000 = around 0.001</output>

<gadget id="calculator">8 / (1/1_000) / 100</gadget>
<output>80</output>

<gadget id="calculator">4.5 / (1/1_000) / 100</gadget>
<output>45</output>

<gadget id="calculator">80 * 45</gadget>
<output>3_600</output>

<result>3_600</result>