A cylindrical piece of wood is 5 meters long. After cutting it into 4 equal sections, the surface area increases by 18.84 square centimeters. What is the volume of this log in cubic centimeters?
一根圆柱形木材长5米，把它截成相等的4段后，表面积增加了18.84平方厘米．原来这根圆木的体积是多少立方厘米？
<gadget id="calculator">18.84 / 6</gadget>
<output>3.14</output>

<gadget id="calculator">5 * 100</gadget>
<output>500</output>

<gadget id="calculator">3.14 * 500</gadget>
<output>1_570</output>

<result>1_570</result>