No problem, we've got 8418 and 9931 to multiply
8418 × 9931 = 9931 × (8418)
+ 9931 × 8 that results in 79448
+ 9931 × 10 yielding 99310
+ 9931 × 400 what gives us 3972400
+ 9931 × 8000 that results in 79448000

= 83599158
