Alright, let's work through 3636 times 5409 step by step
3636 × 5409 = 5409 × (3636)
+ 5409 × 6 that equals 32454
+ 5409 × 30 giving us 162270
+ 5409 × 600 what gives us 3245400
+ 5409 × 3000 that results in 16227000

= 19667124
