Alright, let's work through 2636 times 4885 step by step
2636 × 4885 = 4885 × (2636)
+ 4885 × 6 that equals 29310
+ 4885 × 30 producing 146550
+ 4885 × 600 yielding 2931000
+ 4885 × 2000 that equals 9770000

= 12876860
