A cuboid steel block with a length of 6 decimeters, a width of 5 decimeters, and a height of 3.14 decimeters is cast into a cylindrical steel column with a bottom diameter of 4 decimeters. How many decimeters is the height of this steel column?
把一块长6分米、宽5分米，高3.14分米的长方体钢块铸造成一个底面直径为4分米的圆柱形钢柱，这个钢柱的高是多少分米？
<gadget id="calculator">4 / 2</gadget>
<output>2</output>

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

<gadget id="calculator">3.14 * 4</gadget>
<output>12.56</output>

<gadget id="calculator">3.14 / 12.56</gadget>
<output>0.25</output>

<gadget id="calculator">6 * 5 * 0.25</gadget>
<output>7.5</output>

<result>7.5</result>