No problem, we've got 5142 and 1993 to multiply
5142 × 1993 = 1993 × (5142)
+ 1993 × 2 what gives us 3986
+ 1993 × 40 giving us 79720
+ 1993 × 100 which equals 199300
+ 1993 × 5000 that is equal 9965000

= 10248006
