A piece of steel billet with a side length of 6 meters is forged into a cuboid with a cross section of 9 square meters. How long is the forged steel?
一块棱长是6米的正方体的钢坯，锻成横截面是9平方米的长方体，锻成的钢材有多长？
<gadget id="calculator">6 / 9</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">6 * 6 * (2/3)</gadget>
<output>24</output>

<result>24</result>