Alright, let's work through 13359895 times 83507059 step by step
13359895 × 83507059 = 83507059 × (13359895)
+ 83507059 × 5 that is equal 417535295
+ 83507059 × 90 giving us 7515635310
+ 83507059 × 800 producing 66805647200
+ 83507059 × 9000 that results in 751563531000
+ 83507059 × 50000 resulting in 4175352950000
+ 83507059 × 300000 that equals 25052117700000
+ 83507059 × 3000000 that equals 250521177000000
+ 83507059 × 10000000 that results in 835070590000000

= 1115645539998805
