Let's calculate 9997967 x 19721698
9997967 × 19721698 = 19721698 × (9997967)
+ 19721698 × 7 which equals 138051886
+ 19721698 × 60 giving us 1183301880
+ 19721698 × 900 that results in 17749528200
+ 19721698 × 7000 which equals 138051886000
+ 19721698 × 90000 that results in 1774952820000
+ 19721698 × 900000 yielding 17749528200000
+ 19721698 × 9000000 that equals 177495282000000

= 197176885787966
