How do you divide (9.2 × 1028) ÷ (4.6 × 109)?

Mar 29, 2015

Since this was asked under the heading "scientific notation" I am going to assume the question should be
How do you divide $\left(9.2 \times {10}^{28}\right) \div \left(4.6 \times {10}^{9}\right)$

Separate the coefficients from the exponents;
divide the coefficients;
divide the exponents;
$\frac{9.2}{4.6}$
$= 2.0$
${10}^{28} / {10}^{9}$
$= {10}^{19}$
$\left(9.2 \times {10}^{28}\right) \div \left(4.6 \times {10}^{9}\right)$
$= 2.0 \times {10}^{19}$