Alright, let's work through 97555114 times 72728071 step by step
97555114 × 72728071 = 72728071 × (97555114)
+ 72728071 × 4 resulting in 290912284
+ 72728071 × 10 resulting in 727280710
+ 72728071 × 100 resulting in 7272807100
+ 72728071 × 5000 yielding 363640355000
+ 72728071 × 50000 resulting in 3636403550000
+ 72728071 × 500000 yielding 36364035500000
+ 72728071 × 7000000 what gives us 509096497000000
+ 72728071 × 90000000 yielding 6545526390000000

= 7094995257405094
