20016*820= 16.008*290= 30.543*650= 18.209*340= 458.200/790= 936600/420= 166.680/360= 835800/210
20016*820=16413120 30.543*650=19852950 18.209*340=6191060 458.200/790=580 936600/420=2230 166.680/360=463 835800/210=3980
16008*290=4642320