No problem, we've got 4145 and 6143 to multiply
4145 × 6143 = 6143 × (4145)
+ 6143 × 5 giving us 30715
+ 6143 × 40 which equals 245720
+ 6143 × 100 which equals 614300
+ 6143 × 4000 that results in 24572000

= 25462735
