Alright, let's work through 72908887 times 89288194 step by step
72908887 × 89288194 = 89288194 × (72908887)
+ 89288194 × 7 that equals 625017358
+ 89288194 × 80 that results in 7143055520
+ 89288194 × 800 what gives us 71430555200
+ 89288194 × 8000 that results in 714305552000
+ 89288194 × 00000 producing 0
+ 89288194 × 900000 resulting in 80359374600000
+ 89288194 × 2000000 which equals 178576388000000
+ 89288194 × 70000000 producing 6250173580000000

= 6509902846780078
