Answer
$78,250,000,000 = 7.825 \times 10^{10}$
Work Step by Step
To write the given number in scientific notation, do the following steps:
(i) Move the decimal point 10 places to the left to have $7.825$.
(ii) Multiply $10^{10}$ to retain the values and have:
$78,250,000,000 = 7.825 \times 10^{10}$