No problem, we've got 1875 and 4002 to multiply
1875 × 4002 = 4002 × (1875)
+ 4002 × 5 what gives us 20010
+ 4002 × 70 that is equal 280140
+ 4002 × 800 which equals 3201600
+ 4002 × 1000 that equals 4002000

= 7503750
