In "Under the Tuscan Sun," Frances buys an Italian villa that includes a house and land big enough that it takes 2 oxen 2 days to plow. The historical definition of an acre was the area tillable by one ox in one day. This was an area that was typically 1 furlong long by 1 chain wide (1 historical acre = approximately 4400 yd²). Given that the modern acre is equal to 4042 m², how many modern-day acres did Frances buy?