Alright, let's work through 1457 times 390 step by step
1457 × 390 = 390 × (1457)
+ 390 × 7 that equals 2730
+ 390 × 50 which equals 19500
+ 390 × 400 that is equal 156000
+ 390 × 1000 producing 390000

= 568230
