No problem, we've got 3823 and 7420 to multiply
3823 × 7420 = 7420 × (3823)
+ 7420 × 3 that is equal 22260
+ 7420 × 20 resulting in 148400
+ 7420 × 800 resulting in 5936000
+ 7420 × 3000 resulting in 22260000

= 28366660
