87150 ÷ 7 
The aim is to understand the frequency of 7 in 87150.

On to step 1:
If we divide 8 by 7, we get 1 and a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 7 from 8 and we're left with 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 7

Let's proceed to step 2:
17 divided by 7 is 2 with a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Deduct 14 from 17 and we're left with 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 7

On to step 3:
When dividing 31 by 7, we get 4 with a remainder of 3.
The number 4 becomes the next digit in our result. 
Result so far: 124.0
If we subtract 28 from 31, we get 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 7

Moving on to step 4:
35 divided by 7 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 1245.0
The remainder is 0 after subtracting 35 from 35.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 7

Advancing to step 5:
7 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 12450.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 6:
7 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 12450.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 7:
7 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 12450.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 12450.0 with a remainder of 0.0.