No problem, we've got 4892 and 7945 to multiply
4892 × 7945 = 7945 × (4892)
+ 7945 × 2 that results in 15890
+ 7945 × 90 giving us 715050
+ 7945 × 800 what gives us 6356000
+ 7945 × 4000 that is equal 31780000

= 38866940
