No problem, we've got 6466 and 3139 to multiply
6466 × 3139 = 3139 × (6466)
+ 3139 × 6 what gives us 18834
+ 3139 × 60 that is equal 188340
+ 3139 × 400 that results in 1255600
+ 3139 × 6000 which equals 18834000

= 20296774
