Transfer 217.44 from octal in decimal number system

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let\'s translate to decimal like this:

2∙82+1∙81+7∙80+4∙8-1+4∙8-2 = 2∙64+1∙8+7∙1+4∙0.125+4∙0.015625 = 128+8+7+0.5+0.0625 = 143.562510

got It: 217.448 =143.562510

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