Alright, let's work through 54389544 times 77382713 step by step
54389544 × 77382713 = 77382713 × (54389544)
+ 77382713 × 4 what gives us 309530852
+ 77382713 × 40 that equals 3095308520
+ 77382713 × 500 which equals 38691356500
+ 77382713 × 9000 which equals 696444417000
+ 77382713 × 80000 that is equal 6190617040000
+ 77382713 × 300000 what gives us 23214813900000
+ 77382713 × 4000000 that is equal 309530852000000
+ 77382713 × 50000000 producing 3869135650000000

= 4208810473552872
