We look at the division of 4238475 by 260 
The aim is to understand the frequency of 260 in 4238475.

On to step 1:
The number 260 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 260

Advancing to step 2:
260 goes into 42 0 times with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Fetch the next digit (3) from the dividend, attach it to 42 and continue: 423 / 260

Step 3:
260 goes into 423 1 times with a remainder of 163.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 260 from 423 to get 163.
Grab the next digit (8) from the dividend, add it to 163, then carry on: 1638 / 260

Advancing to step 4:
The number 260 fits into 1638 6 times, leaving a remainder of 78.
Put 6 as the next digit of the answer. 
Result so far: 16.0
If we subtract 1560 from 1638, we get 78.
Grab the next digit (4) from the dividend, add it to 78, then carry on: 784 / 260

Moving on to step 5:
When dividing 784 by 260, we get 3 with a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 163.0
Deduct 780 from 784 and we're left with 4.
Include the next digit (7) from the dividend after 4, then repeat: 47 / 260

On to step 6:
260 goes into 47 0 times with a remainder of 47.
Use 0 as the next digit of our solution. 
Result so far: 1630.0
Subtract 0 from 47 to get 47.
Take the next digit (5) from the dividend and append it to 47, then repeat: 475 / 260

Moving on to step 7:
If we divide 475 by 260, we get 1 and a remainder of 215.
Put 1 as the next digit of the answer. 
Result so far: 16301.0
If we take 260 away from 475, we end up with 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Advancing to step 8:
2150 divided by 260 is 8 with a remainder of 70.
The number 8 becomes the next digit in our result. 
Result so far: 16301.8
Deduct 2080 from 2150 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 9:
The number 260 fits into 700 2 times, leaving a remainder of 180.
Record the quotient 2 as the next digit in the result. 
Result so far: 16301.82
If we subtract 520 from 700, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Moving on to step 10:
If we divide 1800 by 260, we get 6 and a remainder of 240.
The number 6 becomes the next digit in our result. 
Result so far: 16301.826
Deduct 1560 from 1800 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 11:
When dividing 2400 by 260, we get 9 with a remainder of 60.
Put 9 as the next digit of the answer. 
Result so far: 16301.8269
Subtracting 2340 from 2400 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 12:
600 divided by 260 is 2 with a remainder of 80.
Write down 2 as next digit of the result. 
Result so far: 16301.82692
If we take 520 away from 600, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 13:
When dividing 800 by 260, we get 3 with a remainder of 20.
The next digit of our result is 3. 
Result so far: 16301.826923
Subtracting 780 from 800 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 14:
If we divide 200 by 260, we get 0 and a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 16301.826923
If we take 0 away from 200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 15:
260 can be fit into 2000 7 times, resulting in a remainder of 180.
The next digit of our result is 7. 
Result so far: 16301.82692307
The remainder is 180 after subtracting 1820 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

The final outcome is 16301.82692307, with a leftover of 1.8e-07.