845273 divided by 7 
The aim is to understand the frequency of 7 in 845273.

On to step 1:
If we divide 8 by 7, we get 1 and a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 7 from 8 and we're left with 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 7

On to step 2:
When dividing 14 by 7, we get 2 with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 12.0
If we subtract 14 from 14, we get 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 7

Advancing to step 3:
7 can be fit into 5 0 times, resulting in a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 120.0
Subtract 0 from 5 to get 5.
Grab the next digit (2) from the dividend, add it to 5, then carry on: 52 / 7

Moving on to step 4:
If we divide 52 by 7, we get 7 and a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 1207.0
The remainder is 3 after subtracting 49 from 52.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 7

Moving on to step 5:
7 can be fit into 37 5 times, resulting in a remainder of 2.
Use 5 as the next digit of our solution. 
Result so far: 12075.0
The remainder is 2 after subtracting 35 from 37.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 7

Step 6:
7 can be fit into 23 3 times, resulting in a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 120753.0
Subtracting 21 from 23 leaves us 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.

On to step 7:
When dividing 20 by 7, we get 2 with a remainder of 6.
The next digit of our result is 2. 
Result so far: 120753.2
Subtract 14 from 20 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
7 can be fit into 60 8 times, resulting in a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 120753.28
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.

Let's proceed to step 9:
The number 7 fits into 40 5 times, leaving a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 120753.285
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.

On to step 10:
7 goes into 50 7 times with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 120753.2857
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.

Step 11:
The number 7 fits into 10 1 times, leaving a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 120753.28571
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 12:
If we divide 30 by 7, we get 4 and a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 120753.285714
If we take 28 away from 30, we end up 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.

Advancing to step 13:
20 divided by 7 is 2 with a remainder of 6.
The next digit of our result is 2. 
Result so far: 120753.2857142
If we subtract 14 from 20, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 14:
7 goes into 60 8 times with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 120753.28571428
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.

The final outcome is 120753.28571428, with a leftover of 4e-09.