Step 1: Move the decimal point from its current position (the black dot) to a position immediately to the right of the first nonzero digit (the red dot).
9.8.00345
Step 2: We moved the decimal point 1 spaces to the right. Therefore, the exponent on base 10 will be positive 1.Now we know that the:
Mantissa = 9.800345
Exponent = 1
So, the solution is:
$$98.00345 = \color{blue}{ 9.800345} \cdot 10^{ \color{red}{ 1 }}$$