No problem, we've got 84779925 and 18100345 to multiply
84779925 × 18100345 = 18100345 × (84779925)
+ 18100345 × 5 that results in 90501725
+ 18100345 × 20 that equals 362006900
+ 18100345 × 900 giving us 16290310500
+ 18100345 × 9000 resulting in 162903105000
+ 18100345 × 70000 resulting in 1267024150000
+ 18100345 × 700000 that results in 12670241500000
+ 18100345 × 4000000 producing 72401380000000
+ 18100345 × 80000000 resulting in 1448027600000000

= 1534545891574125
