Alright, let's work through 70206441 times 79817629 step by step
70206441 × 79817629 = 79817629 × (70206441)
+ 79817629 × 1 resulting in 79817629
+ 79817629 × 40 which equals 3192705160
+ 79817629 × 400 resulting in 31927051600
+ 79817629 × 6000 what gives us 478905774000
+ 79817629 × 00000 yielding 0
+ 79817629 × 200000 giving us 15963525800000
+ 79817629 × 0000000 which equals 0
+ 79817629 × 70000000 producing 5587234030000000

= 5603711661148389
