Alright, let's work through 4374 times 4087 step by step
4374 × 4087 = 4087 × (4374)
+ 4087 × 4 what gives us 16348
+ 4087 × 70 yielding 286090
+ 4087 × 300 that equals 1226100
+ 4087 × 4000 that equals 16348000

= 17876538
