No problem, we've got 8136 and 5238 to multiply
8136 × 5238 = 5238 × (8136)
+ 5238 × 6 what gives us 31428
+ 5238 × 30 yielding 157140
+ 5238 × 100 which equals 523800
+ 5238 × 8000 which equals 41904000

= 42616368
