Step 1: Write both numbers in scientific notation. For more information, use the SN Converter.
$$ 0.403\cdot 10^{6} = 0.403\cdot 10^{6} $$$$ 0.197\cdot 10^{-1} = 0.197\cdot 10^{-1} $$Step 2: Multiply the numeric parts. Note that in intermediate calculations, we need 6 significant digits.
$$ 0.403 \cdot 0.197 \approx 0.07939 $$Step 3: Multiply $10^{ 6 }$ by $10^{ -1 }$:
$$ 10^{ 6 } \cdot 10^{ -1 } = 10^{ 6-1 } = 10^{ 5 } $$Step 4: Write the solution as the product of the numbers obtained in steps two and three.
$$ 0.07939 \cdot 10^{ 5 } $$Step 5: Number 0.07939 smaller than 10.
To fix this, we need to move the decimal point one place to the right and subtract 1 from the exponent.