No problem, we've got 80257399 and 83480693 to multiply
80257399 × 83480693 = 83480693 × (80257399)
+ 83480693 × 9 yielding 751326237
+ 83480693 × 90 that is equal 7513262370
+ 83480693 × 300 resulting in 25044207900
+ 83480693 × 7000 that is equal 584364851000
+ 83480693 × 50000 that results in 4174034650000
+ 83480693 × 200000 which equals 16696138600000
+ 83480693 × 0000000 that is equal 0
+ 83480693 × 80000000 giving us 6678455440000000

= 6699943286897507
