Calculate 1,242.67^6 using logs.
log 1,242.67 = 3.0943558
This means
1,242.67 = 10 ^{3.0943558}
If this is taken to the power of 6, it means that this index of 10 is multiplied 6 times. Therefore
log 1,242.67^6 = 6 log 1,242.67 = 18.566135
Using the [ 10^x ] function to evaluate this number gives
3.6824 × 10^{18} = 3,682, 400,000,000,000,000