No problem, we've got 3935 and 5393 to multiply
3935 × 5393 = 5393 × (3935)
+ 5393 × 5 that results in 26965
+ 5393 × 30 that is equal 161790
+ 5393 × 900 that is equal 4853700
+ 5393 × 3000 yielding 16179000

= 21221455
