No problem, we've got 1000 and 7215 to multiply
1000 × 7215 = 7215 × (1000)
+ 7215 × 0 what gives us 0
+ 7215 × 00 what gives us 0
+ 7215 × 000 that results in 0
+ 7215 × 1000 producing 7215000

= 7215000
