Step 1: Write both numbers in scientific notation. For more information, use the SN Converter.
$$ 1.98\cdot 10^{8} = 1.98\cdot 10^{8} $$$$ 8.93\cdot 10^{7} = 8.93\cdot 10^{7} $$Step 2: Multiply the numeric parts. Note that in intermediate calculations, we need 6 significant digits.
$$ 1.98 \cdot 8.93 \approx 17.6814 $$Step 3: Multiply $10^{ 8 }$ by $10^{ 7 }$:
$$ 10^{ 8 } \cdot 10^{ 7 } = 10^{ 8+7 } = 10^{ 15 } $$Step 4: Write the solution as the product of the numbers obtained in steps two and three.
$$ 17.6814 \cdot 10^{ 15 } $$Step 5: Number 17.6814 is larger than 10.
To fix this, we need to move the decimal point one place to the left and add 1 to the exponent.