We're dividing 873376 by 72 
The aim is to understand the frequency of 72 in 873376.

Step 1:
The number 72 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 72

On to step 2:
87 divided by 72 is 1 with a remainder of 15.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 72 away from 87, we end up with 15.
Grab the next digit (3) from the dividend, add it to 15, then carry on: 153 / 72

On to step 3:
72 goes into 153 2 times with a remainder of 9.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 9 after subtracting 144 from 153.
Append the next digit (3) from the dividend to 9 and continue with: 93 / 72

Going ahead to step 4:
72 can be fit into 93 1 times, resulting in a remainder of 21.
The next digit of our result is 1. 
Result so far: 121.0
If we take 72 away from 93, we end up with 21.
Grab the next digit (7) from the dividend, add it to 21, then carry on: 217 / 72

Moving on to step 5:
72 can be fit into 217 3 times, resulting in a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 1213.0
Deduct 216 from 217 and we're left with 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 72

Step 6:
72 can be fit into 16 0 times, resulting in a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 12130.0
Subtract 0 from 16 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 7:
72 can be fit into 160 2 times, resulting in a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 12130.2
Subtracting 144 from 160 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 8:
The number 72 fits into 160 2 times, leaving a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 12130.22
Subtract 144 from 160 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The quotient of the division is 12130.22, and the remainder is 0.016.