Alright, let's work through 80507955 times 68740464 step by step
80507955 × 68740464 = 68740464 × (80507955)
+ 68740464 × 5 that is equal 343702320
+ 68740464 × 50 what gives us 3437023200
+ 68740464 × 900 that is equal 61866417600
+ 68740464 × 7000 which equals 481183248000
+ 68740464 × 00000 resulting in 0
+ 68740464 × 500000 producing 34370232000000
+ 68740464 × 0000000 that equals 0
+ 68740464 × 80000000 which equals 5499237120000000

= 5534154182391120
