No problem, we've got 81817965 and 83679440 to multiply
81817965 × 83679440 = 83679440 × (81817965)
+ 83679440 × 5 resulting in 418397200
+ 83679440 × 60 giving us 5020766400
+ 83679440 × 900 resulting in 75311496000
+ 83679440 × 7000 which equals 585756080000
+ 83679440 × 10000 giving us 836794400000
+ 83679440 × 800000 that results in 66943552000000
+ 83679440 × 1000000 that equals 83679440000000
+ 83679440 × 80000000 that is equal 6694355200000000

= 6846481493139600
