72715398 ÷ 322 
The aim is to understand the frequency of 322 in 72715398.

Step 1:
If we divide 7 by 322, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 322

Moving on to step 2:
322 can be fit into 72 0 times, resulting in a remainder of 72.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Include the next digit (7) from the dividend after 72, then repeat: 727 / 322

Step 3:
If we divide 727 by 322, we get 2 and a remainder of 83.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 644 from 727, we get 83.
Grab the next digit (1) from the dividend, add it to 83, then carry on: 831 / 322

On to step 4:
When dividing 831 by 322, we get 2 with a remainder of 187.
Use 2 as the next digit of our solution. 
Result so far: 22.0
Subtracting 644 from 831 leaves us with 187.
Take the next digit (5) from the dividend and append it to 187, then repeat: 1875 / 322

On to step 5:
322 goes into 1875 5 times with a remainder of 265.
The number 5 becomes the next digit in our result. 
Result so far: 225.0
The remainder is 265 after subtracting 1610 from 1875.
Grab the next digit (3) from the dividend, add it to 265, then carry on: 2653 / 322

Step 6:
322 goes into 2653 8 times with a remainder of 77.
Use 8 as the next digit of our solution. 
Result so far: 2258.0
Subtract 2576 from 2653 to get 77.
Fetch the next digit (9) from the dividend, attach it to 77 and continue: 779 / 322

Going ahead to step 7:
The number 322 fits into 779 2 times, leaving a remainder of 135.
The next digit of our result is 2. 
Result so far: 22582.0
Subtract 644 from 779 to get 135.
Append the next digit (8) from the dividend to 135 and continue with: 1358 / 322

Moving on to step 8:
322 can be fit into 1358 4 times, resulting in a remainder of 70.
The number 4 becomes the next digit in our result. 
Result so far: 225824.0
The remainder is 70 after subtracting 1288 from 1358.
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 9:
322 goes into 700 2 times with a remainder of 56.
Record the quotient 2 as the next digit in the result. 
Result so far: 225824.2
If we subtract 644 from 700, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 10:
322 goes into 560 1 times with a remainder of 238.
Record the quotient 1 as the next digit in the result. 
Result so far: 225824.21
If we subtract 322 from 560, we get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Step 11:
If we divide 2380 by 322, we get 7 and a remainder of 126.
Put 7 as the next digit of the answer. 
Result so far: 225824.217
The remainder is 126 after subtracting 2254 from 2380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Step 12:
When dividing 1260 by 322, we get 3 with a remainder of 294.
Write down 3 as next digit of the result. 
Result so far: 225824.2173
Subtracting 966 from 1260 leaves us with 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Let's proceed to step 13:
If we divide 2940 by 322, we get 9 and a remainder of 42.
The number 9 becomes the next digit in our result. 
Result so far: 225824.21739
Deduct 2898 from 2940 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 14:
If we divide 420 by 322, we get 1 and a remainder of 98.
The number 1 becomes the next digit in our result. 
Result so far: 225824.217391
Subtracting 322 from 420 leaves us with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Step 15:
The number 322 fits into 980 3 times, leaving a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 225824.2173913
The remainder is 14 after subtracting 966 from 980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 16:
322 can be fit into 140 0 times, resulting in a remainder of 140.
Write down 0 as next digit of the result. 
Result so far: 225824.2173913
Deduct 0 from 140 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Our division results in 225824.2173913 with a remaining 1.4e-07.