Alright, let's work through 88662379 times 43556934 step by step
88662379 × 43556934 = 43556934 × (88662379)
+ 43556934 × 9 resulting in 392012406
+ 43556934 × 70 resulting in 3048985380
+ 43556934 × 300 that results in 13067080200
+ 43556934 × 2000 what gives us 87113868000
+ 43556934 × 60000 that results in 2613416040000
+ 43556934 × 600000 resulting in 26134160400000
+ 43556934 × 8000000 producing 348455472000000
+ 43556934 × 80000000 yielding 3484554720000000

= 3861861390385986
