Alright, let's work through 8638 times 8701 step by step
8638 × 8701 = 8701 × (8638)
+ 8701 × 8 that is equal 69608
+ 8701 × 30 what gives us 261030
+ 8701 × 600 which equals 5220600
+ 8701 × 8000 that equals 69608000

= 75159238
