20.4211
38.8
110.8571
77.6 is about twice the value of 38. So d8 must go into 776 2 times, 20 times, 200 times, etc. Changing that 77.6 number back to 776 must add one decimal place to 2 times, and it becomes 20 times.The actual times is about 20.42, so the estimate was pretty close.
0.0387
0.0052
20.4211
258.6667
776.2842
51 divided 38 = 1.3421052631578947
1.9
2