Alright, let's work through 64706938 times 98887585 step by step
64706938 × 98887585 = 98887585 × (64706938)
+ 98887585 × 8 resulting in 791100680
+ 98887585 × 30 yielding 2966627550
+ 98887585 × 900 that equals 88998826500
+ 98887585 × 6000 that equals 593325510000
+ 98887585 × 00000 giving us 0
+ 98887585 × 700000 resulting in 69221309500000
+ 98887585 × 4000000 yielding 395550340000000
+ 98887585 × 60000000 giving us 5933255100000000

= 6398712831564730
