Write 0.000 392 4 in standard form.
Write 8.14 × 106 as an ordinary number.
Work out 3.4×103×5.2×1074×10−6\displaystyle \frac{3.4 \times 10^3 \times 5.2 \times 10^7}{4 \times 10^{-6}}4×10−63.4×103×5.2×107
