No problem, we've got 1931 and 2145 to multiply
1931 × 2145 = 2145 × (1931)
+ 2145 × 1 that is equal 2145
+ 2145 × 30 giving us 64350
+ 2145 × 900 that is equal 1930500
+ 2145 × 1000 yielding 2145000

= 4141995
