No problem, we've got 7875 and 909 to multiply
7875 × 909 = 909 × (7875)
+ 909 × 5 what gives us 4545
+ 909 × 70 resulting in 63630
+ 909 × 800 that is equal 727200
+ 909 × 7000 giving us 6363000

= 7158375
