We look at the division of 19716986 by 913 
The aim is to understand the frequency of 913 in 19716986.

Moving on to step 1:
If we divide 1 by 913, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 913

Advancing to step 2:
When dividing 19 by 913, we get 0 with a remainder of 19.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 19 to get 19.
Bring next digit (7) of the dividend behind the 19 and repeat the process: 197 / 913

Moving on to step 3:
When dividing 197 by 913, we get 0 with a remainder of 197.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 197, we end up with 197.
Append the next digit (1) from the dividend to 197 and continue with: 1971 / 913

Step 4:
1971 divided by 913 is 2 with a remainder of 145.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 1826 from 1971, we get 145.
Append the next digit (6) from the dividend to 145 and continue with: 1456 / 913

Step 5:
913 goes into 1456 1 times with a remainder of 543.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
Deduct 913 from 1456 and we're left with 543.
Include the next digit (9) from the dividend after 543, then repeat: 5439 / 913

Moving on to step 6:
913 can be fit into 5439 5 times, resulting in a remainder of 874.
Use 5 as the next digit of our solution. 
Result so far: 215.0
If we subtract 4565 from 5439, we get 874.
Include the next digit (8) from the dividend after 874, then repeat: 8748 / 913

Moving on to step 7:
If we divide 8748 by 913, we get 9 and a remainder of 531.
Write down 9 as next digit of the result. 
Result so far: 2159.0
The remainder is 531 after subtracting 8217 from 8748.
Take the next digit (6) from the dividend and append it to 531, then repeat: 5316 / 913

Step 8:
913 goes into 5316 5 times with a remainder of 751.
The next digit of our result is 5. 
Result so far: 21595.0
The remainder is 751 after subtracting 4565 from 5316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7510, and continue the process.

On to step 9:
913 can be fit into 7510 8 times, resulting in a remainder of 206.
Write down 8 as next digit of the result. 
Result so far: 21595.8
Subtracting 7304 from 7510 leaves us with 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

On to step 10:
When dividing 2060 by 913, we get 2 with a remainder of 234.
Put 2 as the next digit of the answer. 
Result so far: 21595.82
If we subtract 1826 from 2060, we get 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

Let's proceed to step 11:
The number 913 fits into 2340 2 times, leaving a remainder of 514.
Write down 2 as next digit of the result. 
Result so far: 21595.822
Deduct 1826 from 2340 and we're left with 514.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

The final result is 21595.822 with a remainder of 0.0514.