Alright, let's work through 2131 times 7623 step by step
2131 × 7623 = 7623 × (2131)
+ 7623 × 1 yielding 7623
+ 7623 × 30 that is equal 228690
+ 7623 × 100 producing 762300
+ 7623 × 2000 that equals 15246000

= 16244613
