Alright, let's work through 55023503 times 78144330 step by step
55023503 × 78144330 = 78144330 × (55023503)
+ 78144330 × 3 which equals 234432990
+ 78144330 × 00 resulting in 0
+ 78144330 × 500 that is equal 39072165000
+ 78144330 × 3000 yielding 234432990000
+ 78144330 × 20000 that is equal 1562886600000
+ 78144330 × 000000 that equals 0
+ 78144330 × 5000000 what gives us 390721650000000
+ 78144330 × 50000000 producing 3907216500000000

= 4299774776187990
