Alright, let's work through 55981837 times 20779936 step by step
55981837 × 20779936 = 20779936 × (55981837)
+ 20779936 × 7 that is equal 145459552
+ 20779936 × 30 what gives us 623398080
+ 20779936 × 800 that is equal 16623948800
+ 20779936 × 1000 that results in 20779936000
+ 20779936 × 80000 resulting in 1662394880000
+ 20779936 × 900000 resulting in 18701942400000
+ 20779936 × 5000000 that results in 103899680000000
+ 20779936 × 50000000 giving us 1038996800000000

= 1163298990022432
