Alright, let's work through 72920724 times 78333962 step by step
72920724 × 78333962 = 78333962 × (72920724)
+ 78333962 × 4 yielding 313335848
+ 78333962 × 20 which equals 1566679240
+ 78333962 × 700 producing 54833773400
+ 78333962 × 0000 what gives us 0
+ 78333962 × 20000 yielding 1566679240000
+ 78333962 × 900000 that is equal 70500565800000
+ 78333962 × 2000000 producing 156667924000000
+ 78333962 × 70000000 that results in 5483377340000000

= 5712169222828488
