Logarithms is the traditional way of adding large numbers

Prior to the 1970s when calculators were not invented multiplying large numbers were very difficult and almost always incorrect, logarithms were used

Dividing numbers using the traditional logarithm method

Uses of the logarithm transformation in regression and forecasting

Use of logarithmic transformation and back-transformation.

Multiplying Large Numbers, Overview, Steps & Examples - Lesson

Brains are bad at big numbers, making it impossible to grasp what a million COVID-19 deaths really means

Logarithms

Brains are bad at big numbers, making it impossible to grasp what a million COVID-19 deaths really means

Logarithms: The Early History of a Familiar Function - John Napier Introduces Logarithms

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We've found a quicker way to multiply really big numbers

Logarithm - Wikipedia