Alright, let's work through 55642678 times 85578936 step by step
55642678 × 85578936 = 85578936 × (55642678)
+ 85578936 × 8 what gives us 684631488
+ 85578936 × 70 which equals 5990525520
+ 85578936 × 600 that is equal 51347361600
+ 85578936 × 2000 which equals 171157872000
+ 85578936 × 40000 yielding 3423157440000
+ 85578936 × 600000 producing 51347361600000
+ 85578936 × 5000000 which equals 427894680000000
+ 85578936 × 50000000 giving us 4278946800000000

= 4761841179430608
