Alright, let's work through 2643 times 4782 step by step
2643 × 4782 = 4782 × (2643)
+ 4782 × 3 resulting in 14346
+ 4782 × 40 which equals 191280
+ 4782 × 600 that results in 2869200
+ 4782 × 2000 resulting in 9564000

= 12638826
