Alright, let's work through 54493655 times 99920244 step by step
54493655 × 99920244 = 99920244 × (54493655)
+ 99920244 × 5 resulting in 499601220
+ 99920244 × 50 that is equal 4996012200
+ 99920244 × 600 that equals 59952146400
+ 99920244 × 3000 that is equal 299760732000
+ 99920244 × 90000 that results in 8992821960000
+ 99920244 × 400000 what gives us 39968097600000
+ 99920244 × 4000000 that is equal 399680976000000
+ 99920244 × 50000000 yielding 4996012200000000

= 5445019304051820
