No problem, we've got 8215 and 8105 to multiply
8215 × 8105 = 8105 × (8215)
+ 8105 × 5 resulting in 40525
+ 8105 × 10 yielding 81050
+ 8105 × 200 yielding 1621000
+ 8105 × 8000 resulting in 64840000

= 66582575
