No problem, we've got 8167 and 2634 to multiply
8167 × 2634 = 2634 × (8167)
+ 2634 × 7 giving us 18438
+ 2634 × 60 what gives us 158040
+ 2634 × 100 producing 263400
+ 2634 × 8000 that results in 21072000

= 21511878
