No problem, we've got 1002 and 7804 to multiply
1002 × 7804 = 7804 × (1002)
+ 7804 × 2 giving us 15608
+ 7804 × 00 producing 0
+ 7804 × 000 what gives us 0
+ 7804 × 1000 which equals 7804000

= 7819608
