Alright, let's work through 87385989 times 69699804 step by step
87385989 × 69699804 = 69699804 × (87385989)
+ 69699804 × 9 that results in 627298236
+ 69699804 × 80 giving us 5575984320
+ 69699804 × 900 that equals 62729823600
+ 69699804 × 5000 resulting in 348499020000
+ 69699804 × 80000 giving us 5575984320000
+ 69699804 × 300000 which equals 20909941200000
+ 69699804 × 7000000 resulting in 487898628000000
+ 69699804 × 80000000 that equals 5575984320000000

= 6090786305646156
