910489 ÷ 7 
The aim is to understand the frequency of 7 in 910489.

Let's proceed to step 1:
If we divide 9 by 7, we get 1 and a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 7 from 9, we get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 7

Let's proceed to step 2:
If we divide 21 by 7, we get 3 and a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we subtract 21 from 21, we get 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 7

Advancing to step 3:
When dividing 0 by 7, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 130.0
The remainder is 0 after subtracting 0 from 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 7

Step 4:
7 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 1300.0
If we subtract 0 from 4, we get 4.
Include the next digit (8) from the dividend after 4, then repeat: 48 / 7

Moving on to step 5:
The number 7 fits into 48 6 times, leaving a remainder of 6.
The next digit of our result is 6. 
Result so far: 13006.0
If we take 42 away from 48, we end up with 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 7

Let's proceed to step 6:
When dividing 69 by 7, we get 9 with a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 130069.0
Subtracting 63 from 69 leaves us 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.

On to step 7:
7 goes into 60 8 times with a remainder of 4.
The next digit of our result is 8. 
Result so far: 130069.8
Deduct 56 from 60 and we're left with 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 8:
40 divided by 7 is 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 130069.85
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.

Advancing to step 9:
7 goes into 50 7 times with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 130069.857
The remainder is 1 after subtracting 49 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 10:
7 can be fit into 10 1 times, resulting in a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 130069.8571
Subtract 7 from 10 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 11:
When dividing 30 by 7, we get 4 with a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 130069.85714
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.

Step 12:
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: 130069.857142
Subtracting 14 from 20 leaves us 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.

Step 13:
7 can be fit into 60 8 times, resulting in a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 130069.8571428
The remainder is 4 after subtracting 56 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 14:
40 divided by 7 is 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 130069.85714285
Subtract 35 from 40 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

After the division, we end up with 130069.85714285 and a remainder of 5e-09.