Alright, let's work through 5138 times 2443 step by step
5138 × 2443 = 2443 × (5138)
+ 2443 × 8 resulting in 19544
+ 2443 × 30 yielding 73290
+ 2443 × 100 which equals 244300
+ 2443 × 5000 that is equal 12215000

= 12552134
