In 2001, the area of rodent infestation in Maduo County, which is located in the birthplace of the Yellow River and the Yangtze River, reached 1,350,700 hectares, with 250 rodents per hectare, and each rat gnawed 47 kilograms of fresh grass every year. If a sheep needs to eat 250 kilograms of grass a year, how many thousands of sheep can eat fresh grass eaten by rodents in the county every year?
2001年，位于黄河、长江发源地的玛多县鼠害面积已达135.07万公顷，每公顷鼠类高达250只，每只鼠每年啃食鲜草47千克．如果一只羊一年需食草250千克，那么，每年全县被鼠类啃食的鲜草可供多少万只羊食用一年？
<gadget id="calculator">250 / 250</gadget>
<output>1</output>

<gadget id="calculator">1_350_700 * 47 * 1</gadget>
<output>63_482_900</output>

<gadget id="calculator">63_482_900 / 10_000</gadget>
<output>634_829/100 = around 6_348.29</output>

<result>634_829/100 = around 6_348.29</result>