Alright, let's work through 7972 times 1709 step by step
7972 × 1709 = 1709 × (7972)
+ 1709 × 2 yielding 3418
+ 1709 × 70 that equals 119630
+ 1709 × 900 that equals 1538100
+ 1709 × 7000 that equals 11963000

= 13624148
