No problem, we've got 1616 and 6123 to multiply
1616 × 6123 = 6123 × (1616)
+ 6123 × 6 which equals 36738
+ 6123 × 10 what gives us 61230
+ 6123 × 600 that equals 3673800
+ 6123 × 1000 producing 6123000

= 9894768
