Alright, let's work through 1616 times 8039 step by step
1616 × 8039 = 8039 × (1616)
+ 8039 × 6 giving us 48234
+ 8039 × 10 resulting in 80390
+ 8039 × 600 giving us 4823400
+ 8039 × 1000 yielding 8039000

= 12991024
