Alright, let's work through 3500 times 3442 step by step
3500 × 3442 = 3442 × (3500)
+ 3442 × 0 what gives us 0
+ 3442 × 00 what gives us 0
+ 3442 × 500 producing 1721000
+ 3442 × 3000 giving us 10326000

= 12047000
