Alright, let's work through 13137228 times 13685397 step by step
13137228 × 13685397 = 13685397 × (13137228)
+ 13685397 × 8 giving us 109483176
+ 13685397 × 20 producing 273707940
+ 13685397 × 200 that results in 2737079400
+ 13685397 × 7000 which equals 95797779000
+ 13685397 × 30000 that equals 410561910000
+ 13685397 × 100000 which equals 1368539700000
+ 13685397 × 3000000 that equals 41056191000000
+ 13685397 × 10000000 that results in 136853970000000

= 179788180659516
