Alright, let's work through 7798 times 1907 step by step
7798 × 1907 = 1907 × (7798)
+ 1907 × 8 yielding 15256
+ 1907 × 90 which equals 171630
+ 1907 × 700 giving us 1334900
+ 1907 × 7000 that results in 13349000

= 14870786
