From the linked article:
Since 1923, the mileage death rate has decreased 93% and now stands at 1.38 deaths per 100 million miles driven.
This is about 72,000,000 miles between motor vehicle deaths, not 500,000 miles.
According to this article https://driving-tests.org/driving-statistics/:
In 2022, there were 5,930,496 police-reported motor vehicle crashes (Source: https://driving-tests.org/driving-statistics/)
And
In 2022, there were 235,086,153 licensed drivers and 303,528,576 registered vehicles in the United States. These drivers drove a total of 3,196,191 million (i.e., over three trillion) vehicle miles that year. (NHTSA, August 2024) (Source: https://driving-tests.org/driving-statistics/)
Which is just over 500,000 miles between police reported crashes.
Edited to correct numbers as noted by comments!
Thanks for checking! That was in fact a typo and I edited my comment to reflect it!