Alright, let's work through 80539518 times 45957859 step by step
80539518 × 45957859 = 45957859 × (80539518)
+ 45957859 × 8 resulting in 367662872
+ 45957859 × 10 that equals 459578590
+ 45957859 × 500 what gives us 22978929500
+ 45957859 × 9000 that results in 413620731000
+ 45957859 × 30000 yielding 1378735770000
+ 45957859 × 500000 what gives us 22978929500000
+ 45957859 × 0000000 which equals 0
+ 45957859 × 80000000 resulting in 3676628720000000

= 3701423812171962
