Alright, let's work through 7809 times 8149 step by step
7809 × 8149 = 8149 × (7809)
+ 8149 × 9 that results in 73341
+ 8149 × 00 producing 0
+ 8149 × 800 which equals 6519200
+ 8149 × 7000 producing 57043000

= 63635541
