Alright, let's work through 77327893 times 80344751 step by step
77327893 × 80344751 = 80344751 × (77327893)
+ 80344751 × 3 yielding 241034253
+ 80344751 × 90 resulting in 7231027590
+ 80344751 × 800 producing 64275800800
+ 80344751 × 7000 which equals 562413257000
+ 80344751 × 20000 resulting in 1606895020000
+ 80344751 × 300000 yielding 24103425300000
+ 80344751 × 7000000 producing 562413257000000
+ 80344751 × 70000000 resulting in 5624132570000000

= 6212890308439643
