We look at the division of 13998190 by 975 
The aim is to understand the frequency of 975 in 13998190.

On to step 1:
1 divided by 975 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 975

Let's proceed to step 2:
975 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 / 975

Advancing to step 3:
975 can be fit into 139 0 times, resulting in a remainder of 139.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 139 leaves us with 139.
Take the next digit (9) from the dividend and append it to 139, then repeat: 1399 / 975

Going ahead to step 4:
When dividing 1399 by 975, we get 1 with a remainder of 424.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 975 from 1399 leaves us with 424.
Append the next digit (8) from the dividend to 424 and continue with: 4248 / 975

Advancing to step 5:
If we divide 4248 by 975, we get 4 and a remainder of 348.
The next digit of our result is 4. 
Result so far: 14.0
Subtracting 3900 from 4248 leaves us with 348.
Append the next digit (1) from the dividend to 348 and continue with: 3481 / 975

On to step 6:
975 can be fit into 3481 3 times, resulting in a remainder of 556.
Record the quotient 3 as the next digit in the result. 
Result so far: 143.0
If we subtract 2925 from 3481, we get 556.
Grab the next digit (9) from the dividend, add it to 556, then carry on: 5569 / 975

On to step 7:
The number 975 fits into 5569 5 times, leaving a remainder of 694.
Put 5 as the next digit of the answer. 
Result so far: 1435.0
Deduct 4875 from 5569 and we're left with 694.
Append the next digit (0) from the dividend to 694 and continue with: 6940 / 975

Moving on to step 8:
975 goes into 6940 7 times with a remainder of 115.
The number 7 becomes the next digit in our result. 
Result so far: 14357.0
Subtracting 6825 from 6940 leaves us with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

On to step 9:
The number 975 fits into 1150 1 times, leaving a remainder of 175.
The next digit of our result is 1. 
Result so far: 14357.1
Subtracting 975 from 1150 leaves us with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

On to step 10:
If we divide 1750 by 975, we get 1 and a remainder of 775.
Record the quotient 1 as the next digit in the result. 
Result so far: 14357.11
Subtracting 975 from 1750 leaves us with 775.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7750, and continue the process.

In conclusion, the division gives 14357.11 with a balance of 0.775.