Alright, let's work through 3837 times 1328 step by step
3837 × 1328 = 1328 × (3837)
+ 1328 × 7 giving us 9296
+ 1328 × 30 giving us 39840
+ 1328 × 800 that equals 1062400
+ 1328 × 3000 that equals 3984000

= 5095536
