Xiaohua performed riding a unicycle on a steel wire rope. The total length of the steel wire is 62.8 meters, and the diameter of the wheel is 40 cm. After walking the wire rope, how many revolutions does the wheel take?
小华在钢丝绳上表演骑独轮车，钢丝全长62.8米，车轮的直径是40厘米，走完钢丝，车轮要转多少周？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">3.14 * (2/5)</gadget>
<output>1.256</output>

<gadget id="calculator">62.8 / 1.256</gadget>
<output>50</output>

<result>50</result>