Alright, let's work through 54043549 times 90464001 step by step
54043549 × 90464001 = 90464001 × (54043549)
+ 90464001 × 9 that is equal 814176009
+ 90464001 × 40 resulting in 3618560040
+ 90464001 × 500 yielding 45232000500
+ 90464001 × 3000 that is equal 271392003000
+ 90464001 × 40000 what gives us 3618560040000
+ 90464001 × 000000 giving us 0
+ 90464001 × 4000000 that equals 361856004000000
+ 90464001 × 50000000 which equals 4523200050000000

= 4888995670779549
