No problem, we've got 1608 and 1131 to multiply
1608 × 1131 = 1131 × (1608)
+ 1131 × 8 that equals 9048
+ 1131 × 00 what gives us 0
+ 1131 × 600 resulting in 678600
+ 1131 × 1000 that equals 1131000

= 1818648
