A wheel with an outer diameter of 70cm travels an uphill road with a length of 1099m. Please do the math, how many times does the wheel need to turn to complete this uphill road?
一车轮外直径为70cm，要经过长度为1099m的上坡路．请你算一算，车轮要转多少圈才能走完这段上坡路？
<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">3.14 * (7/10)</gadget>
<output>2.198</output>

<gadget id="calculator">1_099 / 2.198</gadget>
<output>500</output>

<result>500</result>