We look at the division of 15302502 by 716 
The aim is to understand the frequency of 716 in 15302502.

Going ahead to step 1:
When dividing 1 by 716, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 716

Step 2:
716 can be fit into 15 0 times, resulting in a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Bring next digit (3) of the dividend behind the 15 and repeat the process: 153 / 716

Let's proceed to step 3:
The number 716 fits into 153 0 times, leaving a remainder of 153.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 153, we get 153.
Bring next digit (0) of the dividend behind the 153 and repeat the process: 1530 / 716

On to step 4:
The number 716 fits into 1530 2 times, leaving a remainder of 98.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 1432 from 1530 and we're left with 98.
Append the next digit (2) from the dividend to 98 and continue with: 982 / 716

On to step 5:
If we divide 982 by 716, we get 1 and a remainder of 266.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
Subtract 716 from 982 to get 266.
Fetch the next digit (5) from the dividend, attach it to 266 and continue: 2665 / 716

Advancing to step 6:
The number 716 fits into 2665 3 times, leaving a remainder of 517.
Use 3 as the next digit of our solution. 
Result so far: 213.0
Subtracting 2148 from 2665 leaves us with 517.
Take the next digit (0) from the dividend and append it to 517, then repeat: 5170 / 716

On to step 7:
716 can be fit into 5170 7 times, resulting in a remainder of 158.
Put 7 as the next digit of the answer. 
Result so far: 2137.0
Deduct 5012 from 5170 and we're left with 158.
Append the next digit (2) from the dividend to 158 and continue with: 1582 / 716

Advancing to step 8:
1582 divided by 716 is 2 with a remainder of 150.
Record the quotient 2 as the next digit in the result. 
Result so far: 21372.0
If we take 1432 away from 1582, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 9:
716 can be fit into 1500 2 times, resulting in a remainder of 68.
Record the quotient 2 as the next digit in the result. 
Result so far: 21372.2
If we subtract 1432 from 1500, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 10:
680 divided by 716 is 0 with a remainder of 680.
Put 0 as the next digit of the answer. 
Result so far: 21372.2
Deduct 0 from 680 and we're left with 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

On to step 11:
6800 divided by 716 is 9 with a remainder of 356.
Write down 9 as next digit of the result. 
Result so far: 21372.209
Deduct 6444 from 6800 and we're left with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Moving on to step 12:
When dividing 3560 by 716, we get 4 with a remainder of 696.
The next digit of our result is 4. 
Result so far: 21372.2094
The remainder is 696 after subtracting 2864 from 3560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6960, and continue the process.

On to step 13:
716 can be fit into 6960 9 times, resulting in a remainder of 516.
Use 9 as the next digit of our solution. 
Result so far: 21372.20949
Deduct 6444 from 6960 and we're left with 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

Advancing to step 14:
When dividing 5160 by 716, we get 7 with a remainder of 148.
The next digit of our result is 7. 
Result so far: 21372.209497
The remainder is 148 after subtracting 5012 from 5160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Moving on to step 15:
When dividing 1480 by 716, we get 2 with a remainder of 48.
The next digit of our result is 2. 
Result so far: 21372.2094972
Subtract 1432 from 1480 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 16:
If we divide 480 by 716, we get 0 and a remainder of 480.
Put 0 as the next digit of the answer. 
Result so far: 21372.2094972
The remainder is 480 after subtracting 0 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

The final result is 21372.2094972 with a remainder of 4.8e-07.