No problem, we've got 7845 and 1947 to multiply
7845 × 1947 = 1947 × (7845)
+ 1947 × 5 which equals 9735
+ 1947 × 40 giving us 77880
+ 1947 × 800 which equals 1557600
+ 1947 × 7000 that results in 13629000

= 15274215
