Alright, let's work through 1373 times 531 step by step
1373 × 531 = 531 × (1373)
+ 531 × 3 that equals 1593
+ 531 × 70 what gives us 37170
+ 531 × 300 that results in 159300
+ 531 × 1000 resulting in 531000

= 729063
