No problem, we've got 7934 and 9825 to multiply
7934 × 9825 = 9825 × (7934)
+ 9825 × 4 giving us 39300
+ 9825 × 30 producing 294750
+ 9825 × 900 yielding 8842500
+ 9825 × 7000 producing 68775000

= 77951550
