No problem, we've got 7790 and 1772 to multiply
7790 × 1772 = 1772 × (7790)
+ 1772 × 0 giving us 0
+ 1772 × 90 yielding 159480
+ 1772 × 700 producing 1240400
+ 1772 × 7000 what gives us 12404000

= 13803880
