We look at the division of 80154003 by 685 
The aim is to understand the frequency of 685 in 80154003.

Going ahead to step 1:
When dividing 8 by 685, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 685

Step 2:
If we divide 80 by 685, we get 0 and a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 80 and we're left with 80.
Bring next digit (1) of the dividend behind the 80 and repeat the process: 801 / 685

Step 3:
801 divided by 685 is 1 with a remainder of 116.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 685 from 801 leaves us with 116.
Take the next digit (5) from the dividend and append it to 116, then repeat: 1165 / 685

Advancing to step 4:
685 goes into 1165 1 times with a remainder of 480.
The next digit of our result is 1. 
Result so far: 11.0
If we take 685 away from 1165, we end up with 480.
Bring next digit (4) of the dividend behind the 480 and repeat the process: 4804 / 685

Let's proceed to step 5:
685 goes into 4804 7 times with a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 117.0
Subtracting 4795 from 4804 leaves us with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 685

Let's proceed to step 6:
90 divided by 685 is 0 with a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 1170.0
Deduct 0 from 90 and we're left with 90.
Append the next digit (0) from the dividend to 90 and continue with: 900 / 685

Moving on to step 7:
900 divided by 685 is 1 with a remainder of 215.
Put 1 as the next digit of the answer. 
Result so far: 11701.0
If we take 685 away from 900, we end up with 215.
Append the next digit (3) from the dividend to 215 and continue with: 2153 / 685

Step 8:
2153 divided by 685 is 3 with a remainder of 98.
Use 3 as the next digit of our solution. 
Result so far: 117013.0
If we subtract 2055 from 2153, we get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Let's proceed to step 9:
When dividing 980 by 685, we get 1 with a remainder of 295.
The number 1 becomes the next digit in our result. 
Result so far: 117013.1
Subtract 685 from 980 to get 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Let's proceed to step 10:
2950 divided by 685 is 4 with a remainder of 210.
Write down 4 as next digit of the result. 
Result so far: 117013.14
Subtract 2740 from 2950 to 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.

Advancing to step 11:
When dividing 2100 by 685, we get 3 with a remainder of 45.
Record the quotient 3 as the next digit in the result. 
Result so far: 117013.143
If we subtract 2055 from 2100, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 12:
When dividing 450 by 685, we get 0 with a remainder of 450.
Record the quotient 0 as the next digit in the result. 
Result so far: 117013.143
If we take 0 away from 450, we end up with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Advancing to step 13:
685 can be fit into 4500 6 times, resulting in a remainder of 390.
Write down 6 as next digit of the result. 
Result so far: 117013.14306
The remainder is 390 after subtracting 4110 from 4500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Going ahead to step 14:
The number 685 fits into 3900 5 times, leaving a remainder of 475.
The next digit of our result is 5. 
Result so far: 117013.143065
Subtract 3425 from 3900 to get 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

On to step 15:
4750 divided by 685 is 6 with a remainder of 640.
The next digit of our result is 6. 
Result so far: 117013.1430656
If we take 4110 away from 4750, we end up with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

On to step 16:
685 can be fit into 6400 9 times, resulting in a remainder of 235.
Put 9 as the next digit of the answer. 
Result so far: 117013.14306569
The remainder is 235 after subtracting 6165 from 6400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Our division results in 117013.14306569 with a remaining 2.35e-07.