No problem, we've got 6984 and 4215 to multiply
6984 × 4215 = 4215 × (6984)
+ 4215 × 4 yielding 16860
+ 4215 × 80 yielding 337200
+ 4215 × 900 what gives us 3793500
+ 4215 × 6000 that is equal 25290000

= 29437560
