Alright, let's work through 89166474 times 45597039 step by step
89166474 × 45597039 = 45597039 × (89166474)
+ 45597039 × 4 that is equal 182388156
+ 45597039 × 70 which equals 3191792730
+ 45597039 × 400 that results in 18238815600
+ 45597039 × 6000 which equals 273582234000
+ 45597039 × 60000 that results in 2735822340000
+ 45597039 × 100000 resulting in 4559703900000
+ 45597039 × 9000000 what gives us 410373351000000
+ 45597039 × 80000000 producing 3647763120000000

= 4065727192470486
