13975888 divided by 722 
The aim is to understand the frequency of 722 in 13975888.

Let's proceed to step 1:
The number 722 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 722

On to step 2:
722 goes into 13 0 times with a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Grab the next digit (9) from the dividend, add it to 13, then carry on: 139 / 722

Step 3:
The number 722 fits into 139 0 times, leaving a remainder of 139.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 139 after subtracting 0 from 139.
Grab the next digit (7) from the dividend, add it to 139, then carry on: 1397 / 722

Advancing to step 4:
722 can be fit into 1397 1 times, resulting in a remainder of 675.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 722 from 1397 to get 675.
Fetch the next digit (5) from the dividend, attach it to 675 and continue: 6755 / 722

Step 5:
When dividing 6755 by 722, we get 9 with a remainder of 257.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
Subtract 6498 from 6755 to get 257.
Append the next digit (8) from the dividend to 257 and continue with: 2578 / 722

On to step 6:
722 can be fit into 2578 3 times, resulting in a remainder of 412.
The next digit of our result is 3. 
Result so far: 193.0
Deduct 2166 from 2578 and we're left with 412.
Fetch the next digit (8) from the dividend, attach it to 412 and continue: 4128 / 722

Step 7:
4128 divided by 722 is 5 with a remainder of 518.
Write down 5 as next digit of the result. 
Result so far: 1935.0
If we take 3610 away from 4128, we end up with 518.
Grab the next digit (8) from the dividend, add it to 518, then carry on: 5188 / 722

Advancing to step 8:
5188 divided by 722 is 7 with a remainder of 134.
Write down 7 as next digit of the result. 
Result so far: 19357.0
Deduct 5054 from 5188 and we're left with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Step 9:
If we divide 1340 by 722, we get 1 and a remainder of 618.
The next digit of our result is 1. 
Result so far: 19357.1
Subtract 722 from 1340 to get 618.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6180, and continue the process.

On to step 10:
722 goes into 6180 8 times with a remainder of 404.
Write down 8 as next digit of the result. 
Result so far: 19357.18
The remainder is 404 after subtracting 5776 from 6180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Going ahead to step 11:
4040 divided by 722 is 5 with a remainder of 430.
The number 5 becomes the next digit in our result. 
Result so far: 19357.185
If we take 3610 away from 4040, we end up with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

On to step 12:
4300 divided by 722 is 5 with a remainder of 690.
Write down 5 as next digit of the result. 
Result so far: 19357.1855
Subtracting 3610 from 4300 leaves us with 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6900, and continue the process.

The final outcome is 19357.1855, with a leftover of 0.0069.