Alright, let's work through 2609 times 5309 step by step
2609 × 5309 = 5309 × (2609)
+ 5309 × 9 which equals 47781
+ 5309 × 00 giving us 0
+ 5309 × 600 producing 3185400
+ 5309 × 2000 producing 10618000

= 13851181
