No problem, we've got 7721 and 5445 to multiply
7721 × 5445 = 5445 × (7721)
+ 5445 × 1 giving us 5445
+ 5445 × 20 that is equal 108900
+ 5445 × 700 which equals 3811500
+ 5445 × 7000 that is equal 38115000

= 42040845
