Alright, let's work through 5638 times 5166 step by step
5638 × 5166 = 5166 × (5638)
+ 5166 × 8 that results in 41328
+ 5166 × 30 what gives us 154980
+ 5166 × 600 that results in 3099600
+ 5166 × 5000 resulting in 25830000

= 29125908
