No problem, we've got 1645 and 1235 to multiply
1645 × 1235 = 1235 × (1645)
+ 1235 × 5 that is equal 6175
+ 1235 × 40 resulting in 49400
+ 1235 × 600 resulting in 741000
+ 1235 × 1000 giving us 1235000

= 2031575
