No problem, we've got 4216 and 3850 to multiply
4216 × 3850 = 3850 × (4216)
+ 3850 × 6 what gives us 23100
+ 3850 × 10 which equals 38500
+ 3850 × 200 what gives us 770000
+ 3850 × 4000 what gives us 15400000

= 16231600
