Alright, let's work through 1523 times 1373 step by step
1523 × 1373 = 1373 × (1523)
+ 1373 × 3 that equals 4119
+ 1373 × 20 that is equal 27460
+ 1373 × 500 that is equal 686500
+ 1373 × 1000 producing 1373000

= 2091079
