No problem, we've got 86160021 and 80804743 to multiply
86160021 × 80804743 = 80804743 × (86160021)
+ 80804743 × 1 giving us 80804743
+ 80804743 × 20 giving us 1616094860
+ 80804743 × 000 yielding 0
+ 80804743 × 0000 that equals 0
+ 80804743 × 60000 which equals 4848284580000
+ 80804743 × 100000 what gives us 8080474300000
+ 80804743 × 6000000 which equals 484828458000000
+ 80804743 × 80000000 that is equal 6464379440000000

= 6962138353779603
