No problem, we've got 8419 and 2150 to multiply
8419 × 2150 = 2150 × (8419)
+ 2150 × 9 what gives us 19350
+ 2150 × 10 that is equal 21500
+ 2150 × 400 that equals 860000
+ 2150 × 8000 producing 17200000

= 18100850
