Alright, let's work through 1521 times 1241 step by step
1521 × 1241 = 1241 × (1521)
+ 1241 × 1 producing 1241
+ 1241 × 20 that results in 24820
+ 1241 × 500 resulting in 620500
+ 1241 × 1000 what gives us 1241000

= 1887561
