Alright, let's work through 2860 times 4358 step by step
2860 × 4358 = 4358 × (2860)
+ 4358 × 0 giving us 0
+ 4358 × 60 that equals 261480
+ 4358 × 800 yielding 3486400
+ 4358 × 2000 which equals 8716000

= 12463880
