A cube block with an edge length of 6 decimeters is cut into the largest cylinder. What is the utilization rate of the cube block?
棱长6分米的正方体木块，削成一个最大的圆柱，这个正方体木块的利用率是多少．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9 * 6</gadget>
<output>169.56</output>

<gadget id="calculator">6 * 6 * 6</gadget>
<output>216</output>

<gadget id="calculator">169.56 / 216</gadget>
<output>0.785</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">0.785 * 1</gadget>
<output>0.785</output>

<result>0.785</result>