No problem, we've got 3921 and 1794 to multiply
3921 × 1794 = 1794 × (3921)
+ 1794 × 1 which equals 1794
+ 1794 × 20 that is equal 35880
+ 1794 × 900 that equals 1614600
+ 1794 × 3000 that is equal 5382000

= 7034274
