A cuboid steel, 4.8 meters long, cross-section is a square with side length 5 cm. Steel weighs 7.8 kilograms per cubic decimeter. How many kilograms does this piece of steel weigh?
一根长方体钢材，长4.8米，横截面是一个边长5厘米的正方形．每立方分米钢重7.8千克，这根钢材重多少千克？
<gadget id="calculator">5 / 10</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">4.8 * 10</gadget>
<output>48</output>

<gadget id="calculator">(1/2) * (1/2) * 48 * 7.8</gadget>
<output>93.6</output>

<result>93.6</result>