Alright, let's work through 1756 times 7638 step by step
1756 × 7638 = 7638 × (1756)
+ 7638 × 6 which equals 45828
+ 7638 × 50 that is equal 381900
+ 7638 × 700 yielding 5346600
+ 7638 × 1000 producing 7638000

= 13412328
