Alright, let's work through 1314 times 603 step by step
1314 × 603 = 603 × (1314)
+ 603 × 4 that is equal 2412
+ 603 × 10 that results in 6030
+ 603 × 300 resulting in 180900
+ 603 × 1000 what gives us 603000

= 792342
