Alright, let's work through 99693490 times 11128742 step by step
99693490 × 11128742 = 11128742 × (99693490)
+ 11128742 × 0 that results in 0
+ 11128742 × 90 that is equal 1001586780
+ 11128742 × 400 what gives us 4451496800
+ 11128742 × 3000 what gives us 33386226000
+ 11128742 × 90000 that results in 1001586780000
+ 11128742 × 600000 that results in 6677245200000
+ 11128742 × 9000000 producing 100158678000000
+ 11128742 × 90000000 what gives us 1001586780000000

= 1109463129289580
