No problem, we've got 81610892 and 83207479 to multiply
81610892 × 83207479 = 83207479 × (81610892)
+ 83207479 × 2 that results in 166414958
+ 83207479 × 90 resulting in 7488673110
+ 83207479 × 800 resulting in 66565983200
+ 83207479 × 0000 giving us 0
+ 83207479 × 10000 that results in 832074790000
+ 83207479 × 600000 yielding 49924487400000
+ 83207479 × 1000000 that results in 83207479000000
+ 83207479 × 80000000 resulting in 6656598320000000

= 6790636582261268
