Alright, let's work through 54747311 times 55375687 step by step
54747311 × 55375687 = 55375687 × (54747311)
+ 55375687 × 1 that results in 55375687
+ 55375687 × 10 what gives us 553756870
+ 55375687 × 300 yielding 16612706100
+ 55375687 × 7000 which equals 387629809000
+ 55375687 × 40000 what gives us 2215027480000
+ 55375687 × 700000 which equals 38762980900000
+ 55375687 × 4000000 that results in 221502748000000
+ 55375687 × 50000000 that results in 2768784350000000

= 3031669958027657
