No problem, we've got 4207 and 8560 to multiply
4207 × 8560 = 8560 × (4207)
+ 8560 × 7 what gives us 59920
+ 8560 × 00 resulting in 0
+ 8560 × 200 that equals 1712000
+ 8560 × 4000 which equals 34240000

= 36011920
