Alright, let's work through 81066187 times 46253296 step by step
81066187 × 46253296 = 46253296 × (81066187)
+ 46253296 × 7 that equals 323773072
+ 46253296 × 80 yielding 3700263680
+ 46253296 × 100 producing 4625329600
+ 46253296 × 6000 resulting in 277519776000
+ 46253296 × 60000 producing 2775197760000
+ 46253296 × 000000 that results in 0
+ 46253296 × 1000000 yielding 46253296000000
+ 46253296 × 80000000 giving us 3700263680000000

= 3749578342902352
