Alright, let's work through 1899 times 7275 step by step
1899 × 7275 = 7275 × (1899)
+ 7275 × 9 producing 65475
+ 7275 × 90 producing 654750
+ 7275 × 800 yielding 5820000
+ 7275 × 1000 resulting in 7275000

= 13815225
