We're dividing 13894485 by 261 
The aim is to understand the frequency of 261 in 13894485.

On to step 1:
If we divide 1 by 261, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 261

On to step 2:
261 goes into 13 0 times with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Fetch the next digit (8) from the dividend, attach it to 13 and continue: 138 / 261

Step 3:
261 goes into 138 0 times with a remainder of 138.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 138 and we're left with 138.
Append the next digit (9) from the dividend to 138 and continue with: 1389 / 261

Going ahead to step 4:
261 goes into 1389 5 times with a remainder of 84.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 1305 from 1389 and we're left with 84.
Append the next digit (4) from the dividend to 84 and continue with: 844 / 261

Going ahead to step 5:
When dividing 844 by 261, we get 3 with a remainder of 61.
The next digit of our result is 3. 
Result so far: 53.0
Subtracting 783 from 844 leaves us with 61.
Bring next digit (4) of the dividend behind the 61 and repeat the process: 614 / 261

Let's proceed to step 6:
261 goes into 614 2 times with a remainder of 92.
Use 2 as the next digit of our solution. 
Result so far: 532.0
Subtract 522 from 614 to get 92.
Append the next digit (8) from the dividend to 92 and continue with: 928 / 261

Step 7:
261 can be fit into 928 3 times, resulting in a remainder of 145.
Use 3 as the next digit of our solution. 
Result so far: 5323.0
If we take 783 away from 928, we end up with 145.
Bring next digit (5) of the dividend behind the 145 and repeat the process: 1455 / 261

Going ahead to step 8:
The number 261 fits into 1455 5 times, leaving a remainder of 150.
The number 5 becomes the next digit in our result. 
Result so far: 53235.0
Subtract 1305 from 1455 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 9:
If we divide 1500 by 261, we get 5 and a remainder of 195.
The next digit of our result is 5. 
Result so far: 53235.5
Subtract 1305 from 1500 to get 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Advancing to step 10:
1950 divided by 261 is 7 with a remainder of 123.
Record the quotient 7 as the next digit in the result. 
Result so far: 53235.57
Subtracting 1827 from 1950 leaves us with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Moving on to step 11:
261 goes into 1230 4 times with a remainder of 186.
The number 4 becomes the next digit in our result. 
Result so far: 53235.574
Deduct 1044 from 1230 and we're left with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Going ahead to step 12:
The number 261 fits into 1860 7 times, leaving a remainder of 33.
Record the quotient 7 as the next digit in the result. 
Result so far: 53235.5747
Deduct 1827 from 1860 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 13:
When dividing 330 by 261, we get 1 with a remainder of 69.
Put 1 as the next digit of the answer. 
Result so far: 53235.57471
Subtracting 261 from 330 leaves us with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Moving on to step 14:
If we divide 690 by 261, we get 2 and a remainder of 168.
Write down 2 as next digit of the result. 
Result so far: 53235.574712
Subtract 522 from 690 to get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Moving on to step 15:
261 can be fit into 1680 6 times, resulting in a remainder of 114.
Put 6 as the next digit of the answer. 
Result so far: 53235.5747126
Deduct 1566 from 1680 and we're left with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

On to step 16:
261 goes into 1140 4 times with a remainder of 96.
Use 4 as the next digit of our solution. 
Result so far: 53235.57471264
Subtracting 1044 from 1140 leaves us with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

After the division, we end up with 53235.57471264 and a remainder of 9.6e-08.