Alright, let's work through 84181357 times 45231473 step by step
84181357 × 45231473 = 45231473 × (84181357)
+ 45231473 × 7 which equals 316620311
+ 45231473 × 50 which equals 2261573650
+ 45231473 × 300 producing 13569441900
+ 45231473 × 1000 that equals 45231473000
+ 45231473 × 80000 that results in 3618517840000
+ 45231473 × 100000 yielding 4523147300000
+ 45231473 × 4000000 yielding 180925892000000
+ 45231473 × 80000000 that results in 3618517840000000

= 3807646776248861
