Alright, let's work through 54968251 times 66258939 step by step
54968251 × 66258939 = 66258939 × (54968251)
+ 66258939 × 1 which equals 66258939
+ 66258939 × 50 which equals 3312946950
+ 66258939 × 200 producing 13251787800
+ 66258939 × 8000 which equals 530071512000
+ 66258939 × 60000 that results in 3975536340000
+ 66258939 × 900000 resulting in 59633045100000
+ 66258939 × 4000000 that equals 265035756000000
+ 66258939 × 50000000 what gives us 3312946950000000

= 3642137989945689
