Alright, let's work through 87011103 times 1338516 step by step
87011103 × 1338516 = 1338516 × (87011103)
+ 1338516 × 3 that results in 4015548
+ 1338516 × 00 that equals 0
+ 1338516 × 100 resulting in 133851600
+ 1338516 × 1000 that equals 1338516000
+ 1338516 × 10000 that is equal 13385160000
+ 1338516 × 000000 resulting in 0
+ 1338516 × 7000000 which equals 9369612000000
+ 1338516 × 80000000 which equals 107081280000000

= 116465753543148
