Alright, let's work through 45689691 times 80027447 step by step
45689691 × 80027447 = 80027447 × (45689691)
+ 80027447 × 1 resulting in 80027447
+ 80027447 × 90 which equals 7202470230
+ 80027447 × 600 resulting in 48016468200
+ 80027447 × 9000 what gives us 720247023000
+ 80027447 × 80000 giving us 6402195760000
+ 80027447 × 600000 what gives us 48016468200000
+ 80027447 × 5000000 giving us 400137235000000
+ 80027447 × 40000000 giving us 3201097880000000

= 3656429324948877
