No problem, we've got 1478 and 8389 to multiply
1478 × 8389 = 8389 × (1478)
+ 8389 × 8 that is equal 67112
+ 8389 × 70 that results in 587230
+ 8389 × 400 that results in 3355600
+ 8389 × 1000 that equals 8389000

= 12398942
