Let's calculate 97148487 x 79527521
97148487 × 79527521 = 79527521 × (97148487)
+ 79527521 × 7 resulting in 556692647
+ 79527521 × 80 resulting in 6362201680
+ 79527521 × 400 resulting in 31811008400
+ 79527521 × 8000 yielding 636220168000
+ 79527521 × 40000 that is equal 3181100840000
+ 79527521 × 100000 resulting in 7952752100000
+ 79527521 × 7000000 producing 556692647000000
+ 79527521 × 90000000 what gives us 7157476890000000

= 7725978340010727
