There is four 1/4's per mile.
This means you run 1 mile in 3 x 4 = 12 minutes.
Multiple minutes per mile by total miles:
12 minutes per mile x 26.2 miles = 314.4 minutes.
1 hour = 60 minutes:
Divide total minutes by 60 to get hours:
314.4 minutes / 60 minutes per hour = 5.24 hours.
Multiply the decimal part of the hour by 60 to get the minutes:
0.24 x 60 = 14.4 minutes = 14 minutes and 24 seconds.
Total time = 5 hours, 14 minutes and 24 seconds.