cuboid steel ingot with a length of 0.5 meters, a width of 0.3 meters and a height of 0.8 meters is forged into a cuboid steel piece whose cross section is a square with a side length of 2 decimeters. How long is this steel piece?
把-块长0.5米，宽0.3米，高0.8米的长方体钢锭，锻造成一个横截面是边长为2分米的正方形的长方体钢件，这个钢件有多长？
<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) * (1/5)</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">0.8 / (1/25)</gadget>
<output>20</output>

<gadget id="calculator">0.5 * 0.3 * 20</gadget>
<output>3</output>

<result>3</result>