No problem, we've got 6639 and 7169 to multiply
6639 × 7169 = 7169 × (6639)
+ 7169 × 9 yielding 64521
+ 7169 × 30 that is equal 215070
+ 7169 × 600 what gives us 4301400
+ 7169 × 6000 which equals 43014000

= 47594991
