Alright, let's work through 55885991 times 54031355 step by step
55885991 × 54031355 = 54031355 × (55885991)
+ 54031355 × 1 resulting in 54031355
+ 54031355 × 90 that equals 4862821950
+ 54031355 × 900 yielding 48628219500
+ 54031355 × 5000 what gives us 270156775000
+ 54031355 × 80000 which equals 4322508400000
+ 54031355 × 800000 what gives us 43225084000000
+ 54031355 × 5000000 giving us 270156775000000
+ 54031355 × 50000000 what gives us 2701567750000000

= 3019595819247805
