No problem, we've got 8155 and 5142 to multiply
8155 × 5142 = 5142 × (8155)
+ 5142 × 5 that equals 25710
+ 5142 × 50 yielding 257100
+ 5142 × 100 what gives us 514200
+ 5142 × 8000 resulting in 41136000

= 41933010
