Alright, let's work through 3531 times 125 step by step
3531 × 125 = 125 × (3531)
+ 125 × 1 that equals 125
+ 125 × 30 resulting in 3750
+ 125 × 500 that results in 62500
+ 125 × 3000 resulting in 375000

= 441375
