No problem, we've got 7023 and 2789 to multiply
7023 × 2789 = 2789 × (7023)
+ 2789 × 3 that is equal 8367
+ 2789 × 20 what gives us 55780
+ 2789 × 000 yielding 0
+ 2789 × 7000 giving us 19523000

= 19587147
