Alright, let's work through 1893 times 1815 step by step
1893 × 1815 = 1815 × (1893)
+ 1815 × 3 that results in 5445
+ 1815 × 90 that equals 163350
+ 1815 × 800 which equals 1452000
+ 1815 × 1000 which equals 1815000

= 3435795
