No problem, we've got 8439 and 7803 to multiply
8439 × 7803 = 7803 × (8439)
+ 7803 × 9 which equals 70227
+ 7803 × 30 resulting in 234090
+ 7803 × 400 giving us 3121200
+ 7803 × 8000 that equals 62424000

= 65849517
