19815041 ÷ 958 
The aim is to understand the frequency of 958 in 19815041.

Advancing to step 1:
958 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 958

Advancing to step 2:
If we divide 19 by 958, we get 0 and a remainder of 19.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 19 and we're left with 19.
Bring next digit (8) of the dividend behind the 19 and repeat the process: 198 / 958

On to step 3:
958 goes into 198 0 times with a remainder of 198.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 198 after subtracting 0 from 198.
Fetch the next digit (1) from the dividend, attach it to 198 and continue: 1981 / 958

Moving on to step 4:
958 goes into 1981 2 times with a remainder of 65.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 1916 away from 1981, we end up with 65.
Bring next digit (5) of the dividend behind the 65 and repeat the process: 655 / 958

Moving on to step 5:
The number 958 fits into 655 0 times, leaving a remainder of 655.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
Subtract 0 from 655 to get 655.
Grab the next digit (0) from the dividend, add it to 655, then carry on: 6550 / 958

Step 6:
958 can be fit into 6550 6 times, resulting in a remainder of 802.
The next digit of our result is 6. 
Result so far: 206.0
If we subtract 5748 from 6550, we get 802.
Grab the next digit (4) from the dividend, add it to 802, then carry on: 8024 / 958

Advancing to step 7:
If we divide 8024 by 958, we get 8 and a remainder of 360.
Put 8 as the next digit of the answer. 
Result so far: 2068.0
Deduct 7664 from 8024 and we're left with 360.
Include the next digit (1) from the dividend after 360, then repeat: 3601 / 958

Moving on to step 8:
If we divide 3601 by 958, we get 3 and a remainder of 727.
The next digit of our result is 3. 
Result so far: 20683.0
Subtracting 2874 from 3601 leaves us with 727.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7270, and continue the process.

Step 9:
958 goes into 7270 7 times with a remainder of 564.
Use 7 as the next digit of our solution. 
Result so far: 20683.7
The remainder is 564 after subtracting 6706 from 7270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5640, and continue the process.

Moving on to step 10:
When dividing 5640 by 958, we get 5 with a remainder of 850.
Write down 5 as next digit of the result. 
Result so far: 20683.75
If we take 4790 away from 5640, we end up with 850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8500, and continue the process.

Let's proceed to step 11:
8500 divided by 958 is 8 with a remainder of 836.
Put 8 as the next digit of the answer. 
Result so far: 20683.758
The remainder is 836 after subtracting 7664 from 8500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8360, and continue the process.

On to step 12:
958 goes into 8360 8 times with a remainder of 696.
The next digit of our result is 8. 
Result so far: 20683.7588
If we take 7664 away from 8360, we end up with 696.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6960, and continue the process.

The final result is 20683.7588 with a remainder of 0.00696.