No problem, we've got 5815 and 9450 to multiply
5815 × 9450 = 9450 × (5815)
+ 9450 × 5 what gives us 47250
+ 9450 × 10 that is equal 94500
+ 9450 × 800 giving us 7560000
+ 9450 × 5000 which equals 47250000

= 54951750
