Alright, let's work through 3544 times 2259 step by step
3544 × 2259 = 2259 × (3544)
+ 2259 × 4 resulting in 9036
+ 2259 × 40 resulting in 90360
+ 2259 × 500 what gives us 1129500
+ 2259 × 3000 giving us 6777000

= 8005896
