No problem, we've got 7920 and 5337 to multiply
7920 × 5337 = 5337 × (7920)
+ 5337 × 0 which equals 0
+ 5337 × 20 that is equal 106740
+ 5337 × 900 yielding 4803300
+ 5337 × 7000 producing 37359000

= 42269040
