Alright, let's work through 55400919 times 55099437 step by step
55400919 × 55099437 = 55099437 × (55400919)
+ 55099437 × 9 that is equal 495894933
+ 55099437 × 10 that results in 550994370
+ 55099437 × 900 yielding 49589493300
+ 55099437 × 0000 that results in 0
+ 55099437 × 00000 yielding 0
+ 55099437 × 400000 that results in 22039774800000
+ 55099437 × 5000000 yielding 275497185000000
+ 55099437 × 50000000 giving us 2754971850000000

= 3052559446182603
