No problem, we've got 4145 and 3813 to multiply
4145 × 3813 = 3813 × (4145)
+ 3813 × 5 that results in 19065
+ 3813 × 40 giving us 152520
+ 3813 × 100 that results in 381300
+ 3813 × 4000 what gives us 15252000

= 15804885
