No problem, we've got 7389 and 2944 to multiply
7389 × 2944 = 2944 × (7389)
+ 2944 × 9 which equals 26496
+ 2944 × 80 what gives us 235520
+ 2944 × 300 giving us 883200
+ 2944 × 7000 which equals 20608000

= 21753216
