The average length of Zhang Ning's step is 62 cm. He walked a total of 253 steps along the playground. What is the approximate circumference of the playground?
张宁走一步的平均长度是62厘米，他沿操场走一周共走了253步，操场的周长大约是多少米？
<gadget id="calculator">253 * 62</gadget>
<output>15_686</output>

<gadget id="calculator">15_686 / 100</gadget>
<output>7_843/50 = around 156.86</output>

<result>7_843/50 = around 156.86</result>