No problem, we've got 8398 and 8171 to multiply
8398 × 8171 = 8171 × (8398)
+ 8171 × 8 that equals 65368
+ 8171 × 90 what gives us 735390
+ 8171 × 300 yielding 2451300
+ 8171 × 8000 yielding 65368000

= 68620058
