A piece of cylindrical steel is 75 centimeters long. If it is rolled on the ground for one week, the area that will be rolled over is 1860 square centimeters. Now melt and cast this section of steel into a cuboid billet with a cross-sectional area of 93 square centimeters. Find the length of the cuboid billet. (π takes 3.1)
一段圆柱形钢材长75厘米，如果把它在地面上滚动一周，碾过的面积是1860平方厘米．现在把这段钢材熔铸成横截面积为93平方厘米的长方体钢坯．求长方体钢坯的长．(π取3.1)
<gadget id="calculator">1_860 / 75</gadget>
<output>124/5 = around 24.8</output>

<gadget id="calculator">(124/5) / 3.1 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.1 * 16 * 75</gadget>
<output>3_720</output>

<gadget id="calculator">3_720 / 93</gadget>
<output>40</output>

<result>40</result>