No problem, we've got 1165 and 1600 to multiply
1165 × 1600 = 1600 × (1165)
+ 1600 × 5 giving us 8000
+ 1600 × 60 yielding 96000
+ 1600 × 100 that results in 160000
+ 1600 × 1000 which equals 1600000

= 1864000
