Alright, let's work through 80413023 times 93421090 step by step
80413023 × 93421090 = 93421090 × (80413023)
+ 93421090 × 3 resulting in 280263270
+ 93421090 × 20 resulting in 1868421800
+ 93421090 × 000 giving us 0
+ 93421090 × 3000 that results in 280263270000
+ 93421090 × 10000 what gives us 934210900000
+ 93421090 × 400000 yielding 37368436000000
+ 93421090 × 0000000 that equals 0
+ 93421090 × 80000000 what gives us 7473687200000000

= 7512272258855070
