Alright, let's work through 3889 times 50 step by step
3889 × 50 = 50 × (3889)
+ 50 × 9 what gives us 450
+ 50 × 80 giving us 4000
+ 50 × 800 that results in 40000
+ 50 × 3000 that equals 150000

= 194450
