Alright, let's work through 54129138 times 39530363 step by step
54129138 × 39530363 = 39530363 × (54129138)
+ 39530363 × 8 that results in 316242904
+ 39530363 × 30 that is equal 1185910890
+ 39530363 × 100 that results in 3953036300
+ 39530363 × 9000 resulting in 355773267000
+ 39530363 × 20000 that is equal 790607260000
+ 39530363 × 100000 producing 3953036300000
+ 39530363 × 4000000 that equals 158121452000000
+ 39530363 × 50000000 yielding 1976518150000000

= 2139744474017094
