Alright, let's work through 2805 times 1431 step by step
2805 × 1431 = 1431 × (2805)
+ 1431 × 5 giving us 7155
+ 1431 × 00 resulting in 0
+ 1431 × 800 that results in 1144800
+ 1431 × 2000 which equals 2862000

= 4013955
