We're dividing 15380 by 7 
The aim is to understand the frequency of 7 in 15380.

Let's proceed to step 1:
When dividing 1 by 7, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 7

Going ahead to step 2:
7 can be fit into 15 2 times, resulting in a remainder of 1.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 14 from 15 leaves us with 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 7

Going ahead to step 3:
The number 7 fits into 13 1 times, leaving a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
If we subtract 7 from 13, we get 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 7

Advancing to step 4:
When dividing 68 by 7, we get 9 with a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 219.0
Deduct 63 from 68 and we're left with 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 7

Going ahead to step 5:
When dividing 50 by 7, we get 7 with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 2197.0
If we take 49 away from 50, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 6:
7 goes into 10 1 times with a remainder of 3.
The next digit of our result is 1. 
Result so far: 2197.1
Deduct 7 from 10 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
The number 7 fits into 30 4 times, leaving a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 2197.14
Deduct 28 from 30 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
If we divide 20 by 7, we get 2 and a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 2197.142
Deduct 14 from 20 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 9:
60 divided by 7 is 8 with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 2197.1428
If we subtract 56 from 60, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 10:
When dividing 40 by 7, we get 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 2197.14285
The remainder is 5 after subtracting 35 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 11:
If we divide 50 by 7, we get 7 and a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 2197.142857
If we subtract 49 from 50, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 12:
When dividing 10 by 7, we get 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 2197.1428571
Deduct 7 from 10 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 13:
7 goes into 30 4 times with a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 2197.14285714
Subtract 28 from 30 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The quotient of the division is 2197.14285714, and the remainder is 2e-09.