Alright, let's work through 15671423 times 42272498 step by step
15671423 × 42272498 = 42272498 × (15671423)
+ 42272498 × 3 that equals 126817494
+ 42272498 × 20 producing 845449960
+ 42272498 × 400 giving us 16908999200
+ 42272498 × 1000 that equals 42272498000
+ 42272498 × 70000 which equals 2959074860000
+ 42272498 × 600000 that equals 25363498800000
+ 42272498 × 5000000 giving us 211362490000000
+ 42272498 × 10000000 that equals 422724980000000

= 662470197424654
