Alright, let's work through 1721 times 7459 step by step
1721 × 7459 = 7459 × (1721)
+ 7459 × 1 what gives us 7459
+ 7459 × 20 which equals 149180
+ 7459 × 700 that results in 5221300
+ 7459 × 1000 yielding 7459000

= 12836939
