Alright, let's work through 2631 times 2378 step by step
2631 × 2378 = 2378 × (2631)
+ 2378 × 1 yielding 2378
+ 2378 × 30 that results in 71340
+ 2378 × 600 that results in 1426800
+ 2378 × 2000 yielding 4756000

= 6256518
