No problem, we've got 6921 and 7672 to multiply
6921 × 7672 = 7672 × (6921)
+ 7672 × 1 which equals 7672
+ 7672 × 20 which equals 153440
+ 7672 × 900 what gives us 6904800
+ 7672 × 6000 that equals 46032000

= 53097912
