Alright, let's work through 7719 times 7200 step by step
7719 × 7200 = 7200 × (7719)
+ 7200 × 9 yielding 64800
+ 7200 × 10 that is equal 72000
+ 7200 × 700 producing 5040000
+ 7200 × 7000 resulting in 50400000

= 55576800
