Alright, let's work through 89514144 times 66599694 step by step
89514144 × 66599694 = 66599694 × (89514144)
+ 66599694 × 4 yielding 266398776
+ 66599694 × 40 yielding 2663987760
+ 66599694 × 100 giving us 6659969400
+ 66599694 × 4000 that results in 266398776000
+ 66599694 × 10000 that is equal 665996940000
+ 66599694 × 500000 producing 33299847000000
+ 66599694 × 9000000 that results in 599397246000000
+ 66599694 × 80000000 yielding 5327975520000000

= 5961614599071936
