We're dividing 1064390 by 260 
The aim is to understand the frequency of 260 in 1064390.

Advancing to step 1:
The number 260 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 260

Moving on to step 2:
The number 260 fits into 10 0 times, leaving a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 10, we get 10.
Append the next digit (6) from the dividend to 10 and continue with: 106 / 260

Let's proceed to step 3:
260 goes into 106 0 times with a remainder of 106.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 106 to get 106.
Include the next digit (4) from the dividend after 106, then repeat: 1064 / 260

Step 4:
260 can be fit into 1064 4 times, resulting in a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Deduct 1040 from 1064 and we're left with 24.
Bring next digit (3) of the dividend behind the 24 and repeat the process: 243 / 260

Step 5:
The number 260 fits into 243 0 times, leaving a remainder of 243.
The number 0 becomes the next digit in our result. 
Result so far: 40.0
Deduct 0 from 243 and we're left with 243.
Fetch the next digit (9) from the dividend, attach it to 243 and continue: 2439 / 260

Going ahead to step 6:
When dividing 2439 by 260, we get 9 with a remainder of 99.
Write down 9 as next digit of the result. 
Result so far: 409.0
If we take 2340 away from 2439, we end up with 99.
Include the next digit (0) from the dividend after 99, then repeat: 990 / 260

Step 7:
When dividing 990 by 260, we get 3 with a remainder of 210.
Record the quotient 3 as the next digit in the result. 
Result so far: 4093.0
If we subtract 780 from 990, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Moving on to step 8:
260 can be fit into 2100 8 times, resulting in a remainder of 20.
Use 8 as the next digit of our solution. 
Result so far: 4093.8
If we take 2080 away from 2100, we end up 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.

Going ahead to step 9:
260 can be fit into 200 0 times, resulting in a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 4093.8
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.

Let's proceed to step 10:
If we divide 2000 by 260, we get 7 and a remainder of 180.
The next digit of our result is 7. 
Result so far: 4093.807
If we subtract 1820 from 2000, 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.

Step 11:
The number 260 fits into 1800 6 times, leaving a remainder of 240.
Record the quotient 6 as the next digit in the result. 
Result so far: 4093.8076
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.

Moving on to step 12:
The number 260 fits into 2400 9 times, leaving a remainder of 60.
The next digit of our result is 9. 
Result so far: 4093.80769
If we subtract 2340 from 2400, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 13:
If we divide 600 by 260, we get 2 and a remainder of 80.
Record the quotient 2 as the next digit in the result. 
Result so far: 4093.807692
The remainder is 80 after subtracting 520 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 14:
The number 260 fits into 800 3 times, leaving a remainder of 20.
Write down 3 as next digit of the result. 
Result so far: 4093.8076923
Subtract 780 from 800 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 15:
260 goes into 200 0 times with a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 4093.8076923
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.

After the division, we end up with 4093.8076923 and a remainder of 2e-07.