Alright, let's work through 89038663 times 44341371 step by step
89038663 × 44341371 = 44341371 × (89038663)
+ 44341371 × 3 that is equal 133024113
+ 44341371 × 60 that equals 2660482260
+ 44341371 × 600 what gives us 26604822600
+ 44341371 × 8000 that is equal 354730968000
+ 44341371 × 30000 which equals 1330241130000
+ 44341371 × 000000 yielding 0
+ 44341371 × 9000000 that equals 399072339000000
+ 44341371 × 80000000 which equals 3547309680000000

= 3948096389426973
