Alright, let's work through 2138 times 185 step by step
2138 × 185 = 185 × (2138)
+ 185 × 8 that equals 1480
+ 185 × 30 which equals 5550
+ 185 × 100 that is equal 18500
+ 185 × 2000 that equals 370000

= 395530
