No problem, we've got 4706 and 4280 to multiply
4706 × 4280 = 4280 × (4706)
+ 4280 × 6 which equals 25680
+ 4280 × 00 what gives us 0
+ 4280 × 700 what gives us 2996000
+ 4280 × 4000 that equals 17120000

= 20141680
