No problem, we've got 1391 and 6425 to multiply
1391 × 6425 = 6425 × (1391)
+ 6425 × 1 resulting in 6425
+ 6425 × 90 yielding 578250
+ 6425 × 300 that results in 1927500
+ 6425 × 1000 yielding 6425000

= 8937175
