No problem, we've got 6973 and 1780 to multiply
6973 × 1780 = 1780 × (6973)
+ 1780 × 3 which equals 5340
+ 1780 × 70 what gives us 124600
+ 1780 × 900 which equals 1602000
+ 1780 × 6000 which equals 10680000

= 12411940
