Alright, let's work through 1561 times 7994 step by step
1561 × 7994 = 7994 × (1561)
+ 7994 × 1 yielding 7994
+ 7994 × 60 that equals 479640
+ 7994 × 500 that equals 3997000
+ 7994 × 1000 producing 7994000

= 12478634
