Alright, let's work through 54559489 times 19515407 step by step
54559489 × 19515407 = 19515407 × (54559489)
+ 19515407 × 9 resulting in 175638663
+ 19515407 × 80 resulting in 1561232560
+ 19515407 × 400 resulting in 7806162800
+ 19515407 × 9000 that equals 175638663000
+ 19515407 × 50000 yielding 975770350000
+ 19515407 × 500000 that equals 9757703500000
+ 19515407 × 4000000 resulting in 78061628000000
+ 19515407 × 50000000 resulting in 975770350000000

= 1064750633547023
