Alright, let's work through 2638 times 9886 step by step
2638 × 9886 = 9886 × (2638)
+ 9886 × 8 which equals 79088
+ 9886 × 30 producing 296580
+ 9886 × 600 that equals 5931600
+ 9886 × 2000 yielding 19772000

= 26079268
