No problem, we've got 1145 and 1820 to multiply
1145 × 1820 = 1820 × (1145)
+ 1820 × 5 producing 9100
+ 1820 × 40 resulting in 72800
+ 1820 × 100 yielding 182000
+ 1820 × 1000 that is equal 1820000

= 2083900
