528019 ÷ 72 
The aim is to understand the frequency of 72 in 528019.

On to step 1:
72 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 72

Moving on to step 2:
72 can be fit into 52 0 times, resulting in a remainder of 52.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 52, we get 52.
Fetch the next digit (8) from the dividend, attach it to 52 and continue: 528 / 72

Moving on to step 3:
When dividing 528 by 72, we get 7 with a remainder of 24.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 504 from 528 to get 24.
Bring next digit (0) of the dividend behind the 24 and repeat the process: 240 / 72

Step 4:
72 goes into 240 3 times with a remainder of 24.
Write down 3 as next digit of the result. 
Result so far: 73.0
Subtract 216 from 240 to get 24.
Grab the next digit (1) from the dividend, add it to 24, then carry on: 241 / 72

Moving on to step 5:
The number 72 fits into 241 3 times, leaving a remainder of 25.
Use 3 as the next digit of our solution. 
Result so far: 733.0
If we take 216 away from 241, we end up with 25.
Grab the next digit (9) from the dividend, add it to 25, then carry on: 259 / 72

Advancing to step 6:
When dividing 259 by 72, we get 3 with a remainder of 43.
Write down 3 as next digit of the result. 
Result so far: 7333.0
Subtract 216 from 259 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 7:
The number 72 fits into 430 5 times, leaving a remainder of 70.
Record the quotient 5 as the next digit in the result. 
Result so far: 7333.5
Subtract 360 from 430 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 8:
If we divide 700 by 72, we get 9 and a remainder of 52.
The number 9 becomes the next digit in our result. 
Result so far: 7333.59
If we take 648 away from 700, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 9:
72 goes into 520 7 times with a remainder of 16.
Put 7 as the next digit of the answer. 
Result so far: 7333.597
Subtract 504 from 520 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.

Going ahead to step 10:
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: 7333.5972
If we take 144 away from 160, we end up 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.

Step 11:
72 can be fit into 160 2 times, resulting in a remainder of 16.
The next digit of our result is 2. 
Result so far: 7333.59722
The remainder is 16 after subtracting 144 from 160.
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 7333.59722, and the remainder is 1.6e-05.