Alright, let's work through 45891409 times 54422135 step by step
45891409 × 54422135 = 54422135 × (45891409)
+ 54422135 × 9 giving us 489799215
+ 54422135 × 00 that results in 0
+ 54422135 × 400 resulting in 21768854000
+ 54422135 × 1000 what gives us 54422135000
+ 54422135 × 90000 that results in 4897992150000
+ 54422135 × 800000 resulting in 43537708000000
+ 54422135 × 5000000 yielding 272110675000000
+ 54422135 × 40000000 that results in 2176885400000000

= 2497508455938215
