No problem, we've got 4023 and 4906 to multiply
4023 × 4906 = 4906 × (4023)
+ 4906 × 3 that is equal 14718
+ 4906 × 20 what gives us 98120
+ 4906 × 000 giving us 0
+ 4906 × 4000 resulting in 19624000

= 19736838
