No problem, we've got 6289 and 7578 to multiply
6289 × 7578 = 7578 × (6289)
+ 7578 × 9 that equals 68202
+ 7578 × 80 which equals 606240
+ 7578 × 200 what gives us 1515600
+ 7578 × 6000 yielding 45468000

= 47658042
