Xiaoli rides a bicycle across a bridge with a total length of 251.2 meters. It is known that the diameter of the wheel is 0.4 meters, and the wheel rotates 100 times per minute. How many minutes does it take for Xiaoli to cross the bridge?
小丽骑车通过一座全长251.2米的大桥，已知车轮直径是0.4米，车轮每分钟转100圈，小丽通过这座大桥大约需要几分钟？
<gadget id="calculator">3.14 * 0.4</gadget>
<output>1.256</output>

<gadget id="calculator">1.256 * 100</gadget>
<output>125.6</output>

<gadget id="calculator">251.2 / 125.6</gadget>
<output>2</output>

<result>2</result>