[tex]78.3 \div 1 = \boxed{\bf{78.3}}\\\\78.3 \div 10 = \boxed{\bf{7.83}}\\\\ 78.3 \div 100 = \boxed{\bf{0.783}}\\\\2.179 \div 10^0 = 2.179 \div 1 = \boxed{\bf{2.179}}\\\\2.179 \div 10^1 = 2.179 \div 10 =\boxed{\bf{0.2719}}\\\\2.179\div 10^2 =2.179 \div 100 = \boxed{\bf{0.02719}}[/tex]
