Alright, let's work through 5409 times 2485 step by step
5409 × 2485 = 2485 × (5409)
+ 2485 × 9 giving us 22365
+ 2485 × 00 which equals 0
+ 2485 × 400 that is equal 994000
+ 2485 × 5000 that equals 12425000

= 13441365
