Alright, let's work through 1273 times 450 step by step
1273 × 450 = 450 × (1273)
+ 450 × 3 which equals 1350
+ 450 × 70 that is equal 31500
+ 450 × 200 resulting in 90000
+ 450 × 1000 producing 450000

= 572850
