263891 divided by 7 
The aim is to understand the frequency of 7 in 263891.

Step 1:
The number 7 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (6) from the dividend, add it to 2, then carry on: 26 / 7

Let's proceed to step 2:
The number 7 fits into 26 3 times, leaving a remainder of 5.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 21 from 26, we get 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 7

Advancing to step 3:
53 divided by 7 is 7 with a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 37.0
Subtract 49 from 53 to get 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 7

Step 4:
48 divided by 7 is 6 with a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 376.0
The remainder is 6 after subtracting 42 from 48.
Take the next digit (9) from the dividend and append it to 6, then repeat: 69 / 7

Let's proceed to step 5:
69 divided by 7 is 9 with a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 3769.0
Subtracting 63 from 69 leaves us with 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 7

Let's proceed to step 6:
7 goes into 61 8 times with a remainder of 5.
Write down 8 as next digit of the result. 
Result so far: 37698.0
Subtracting 56 from 61 leaves us with 5.
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 7:
7 goes into 50 7 times with a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 37698.7
Subtract 49 from 50 to 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.

Going ahead to step 8:
7 goes into 10 1 times with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 37698.71
The remainder is 3 after subtracting 7 from 10.
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 9:
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: 37698.714
If we subtract 28 from 30, we 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.

Advancing to step 10:
If we divide 20 by 7, we get 2 and a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 37698.7142
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.

Going ahead to step 11:
If we divide 60 by 7, we get 8 and a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 37698.71428
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.

On to step 12:
When dividing 40 by 7, we get 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 37698.714285
If we take 35 away from 40, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 13:
If we divide 50 by 7, we get 7 and a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 37698.7142857
Subtract 49 from 50 to 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.

Going ahead to step 14:
If we divide 10 by 7, we get 1 and a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 37698.71428571
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.

In conclusion, the division gives 37698.71428571 with a balance of 3e-09.