Alright, let's work through 7729 times 5507 step by step
7729 × 5507 = 5507 × (7729)
+ 5507 × 9 what gives us 49563
+ 5507 × 20 yielding 110140
+ 5507 × 700 which equals 3854900
+ 5507 × 7000 that is equal 38549000

= 42563603
