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).
0.000008.271019
Step 2: We moved the decimal point 6 spaces to the left. Therefore, the exponent on base 10 will be negative 6.Now we know that the:
Mantissa = 8.271019
Exponent = -6
So, the solution is:
$$0.000008271019 = \color{blue}{ 8.271019} \cdot 10^{ \color{red}{ -6 }}$$