A cuboid steel weighs 71.1 kg, and its cross-section is a square with a side length of 6 cm. It is known that steel weighs 7.9 kilograms per cubic decimeter, how many meters is this steel?
一根长方体钢材重71.1千克，横截面是一个边长6厘米的正方形．已知每立方分米的钢重7.9千克，这根钢材长多少米？
<gadget id="calculator">6 / 10</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) * (3/5)</gadget>
<output>9/25 = around 0.36</output>

<gadget id="calculator">71.1 / 7.9 / (9/25) / 10</gadget>
<output>2.5</output>

<result>2.5</result>