Alright, let's work through 55481578 times 15382357 step by step
55481578 × 15382357 = 15382357 × (55481578)
+ 15382357 × 8 that equals 123058856
+ 15382357 × 70 which equals 1076764990
+ 15382357 × 500 giving us 7691178500
+ 15382357 × 1000 which equals 15382357000
+ 15382357 × 80000 giving us 1230588560000
+ 15382357 × 400000 yielding 6152942800000
+ 15382357 × 5000000 producing 76911785000000
+ 15382357 × 50000000 which equals 769117850000000

= 853437439719346
