Alright, let's work through 8729 times 7630 step by step
8729 × 7630 = 7630 × (8729)
+ 7630 × 9 what gives us 68670
+ 7630 × 20 that results in 152600
+ 7630 × 700 resulting in 5341000
+ 7630 × 8000 resulting in 61040000

= 66602270
