Let's calculate 88009489 x 72100541
88009489 × 72100541 = 72100541 × (88009489)
+ 72100541 × 9 giving us 648904869
+ 72100541 × 80 yielding 5768043280
+ 72100541 × 400 resulting in 28840216400
+ 72100541 × 9000 yielding 648904869000
+ 72100541 × 00000 that equals 0
+ 72100541 × 000000 that results in 0
+ 72100541 × 8000000 resulting in 576804328000000
+ 72100541 × 80000000 which equals 5768043280000000

= 6345531770033549
