13455145 ÷ 685 
The aim is to understand the frequency of 685 in 13455145.

Moving on to step 1:
If we divide 1 by 685, we get 0 and 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 (3) from the dividend, add it to 1, then carry on: 13 / 685

Advancing to step 2:
685 goes into 13 0 times with a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Fetch the next digit (4) from the dividend, attach it to 13 and continue: 134 / 685

Let's proceed to step 3:
When dividing 134 by 685, we get 0 with a remainder of 134.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 134 leaves us with 134.
Include the next digit (5) from the dividend after 134, then repeat: 1345 / 685

Advancing to step 4:
If we divide 1345 by 685, we get 1 and a remainder of 660.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 685 from 1345 and we're left with 660.
Grab the next digit (5) from the dividend, add it to 660, then carry on: 6605 / 685

Advancing to step 5:
If we divide 6605 by 685, we get 9 and a remainder of 440.
Put 9 as the next digit of the answer. 
Result so far: 19.0
If we subtract 6165 from 6605, we get 440.
Append the next digit (1) from the dividend to 440 and continue with: 4401 / 685

On to step 6:
The number 685 fits into 4401 6 times, leaving a remainder of 291.
Write down 6 as next digit of the result. 
Result so far: 196.0
The remainder is 291 after subtracting 4110 from 4401.
Grab the next digit (4) from the dividend, add it to 291, then carry on: 2914 / 685

Advancing to step 7:
685 can be fit into 2914 4 times, resulting in a remainder of 174.
Record the quotient 4 as the next digit in the result. 
Result so far: 1964.0
The remainder is 174 after subtracting 2740 from 2914.
Append the next digit (5) from the dividend to 174 and continue with: 1745 / 685

Let's proceed to step 8:
685 goes into 1745 2 times with a remainder of 375.
Put 2 as the next digit of the answer. 
Result so far: 19642.0
Subtracting 1370 from 1745 leaves us with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Step 9:
When dividing 3750 by 685, we get 5 with a remainder of 325.
Put 5 as the next digit of the answer. 
Result so far: 19642.5
If we subtract 3425 from 3750, we get 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Advancing to step 10:
The number 685 fits into 3250 4 times, leaving a remainder of 510.
Write down 4 as next digit of the result. 
Result so far: 19642.54
Deduct 2740 from 3250 and we're left with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Advancing to step 11:
If we divide 5100 by 685, we get 7 and a remainder of 305.
The number 7 becomes the next digit in our result. 
Result so far: 19642.547
Subtract 4795 from 5100 to get 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Advancing to step 12:
When dividing 3050 by 685, we get 4 with a remainder of 310.
Write down 4 as next digit of the result. 
Result so far: 19642.5474
The remainder is 310 after subtracting 2740 from 3050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Going ahead to step 13:
685 can be fit into 3100 4 times, resulting in a remainder of 360.
The number 4 becomes the next digit in our result. 
Result so far: 19642.54744
If we take 2740 away from 3100, we end up with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

After the division, we end up with 19642.54744 and a remainder of 0.00036.