No problem, we've got 7990 and 9827 to multiply
7990 × 9827 = 9827 × (7990)
+ 9827 × 0 giving us 0
+ 9827 × 90 that results in 884430
+ 9827 × 900 that results in 8844300
+ 9827 × 7000 that results in 68789000

= 78517730
