No problem, we've got 3245 and 4220 to multiply
3245 × 4220 = 4220 × (3245)
+ 4220 × 5 which equals 21100
+ 4220 × 40 that equals 168800
+ 4220 × 200 what gives us 844000
+ 4220 × 3000 what gives us 12660000

= 13693900
