15670091 ÷ 685 
The aim is to understand the frequency of 685 in 15670091.

Step 1:
If we divide 1 by 685, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 685

On to step 2:
15 divided by 685 is 0 with a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Fetch the next digit (6) from the dividend, attach it to 15 and continue: 156 / 685

Moving on to step 3:
The number 685 fits into 156 0 times, leaving a remainder of 156.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 156 and we're left with 156.
Append the next digit (7) from the dividend to 156 and continue with: 1567 / 685

Going ahead to step 4:
685 goes into 1567 2 times with a remainder of 197.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 1370 from 1567 to get 197.
Grab the next digit (0) from the dividend, add it to 197, then carry on: 1970 / 685

Advancing to step 5:
1970 divided by 685 is 2 with a remainder of 600.
The next digit of our result is 2. 
Result so far: 22.0
If we subtract 1370 from 1970, we get 600.
Grab the next digit (0) from the dividend, add it to 600, then carry on: 6000 / 685

Step 6:
6000 divided by 685 is 8 with a remainder of 520.
The number 8 becomes the next digit in our result. 
Result so far: 228.0
If we subtract 5480 from 6000, we get 520.
Grab the next digit (9) from the dividend, add it to 520, then carry on: 5209 / 685

Going ahead to step 7:
685 goes into 5209 7 times with a remainder of 414.
Use 7 as the next digit of our solution. 
Result so far: 2287.0
Deduct 4795 from 5209 and we're left with 414.
Fetch the next digit (1) from the dividend, attach it to 414 and continue: 4141 / 685

Moving on to step 8:
4141 divided by 685 is 6 with a remainder of 31.
Use 6 as the next digit of our solution. 
Result so far: 22876.0
If we take 4110 away from 4141, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 9:
685 goes into 310 0 times with a remainder of 310.
Record the quotient 0 as the next digit in the result. 
Result so far: 22876.0
If we take 0 away from 310, we end up with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

On to step 10:
The number 685 fits into 3100 4 times, leaving a remainder of 360.
Write down 4 as next digit of the result. 
Result so far: 22876.04
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.

Let's proceed to step 11:
When dividing 3600 by 685, we get 5 with a remainder of 175.
The number 5 becomes the next digit in our result. 
Result so far: 22876.045
The remainder is 175 after subtracting 3425 from 3600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Step 12:
If we divide 1750 by 685, we get 2 and a remainder of 380.
Write down 2 as next digit of the result. 
Result so far: 22876.0452
Subtracting 1370 from 1750 leaves us with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Advancing to step 13:
When dividing 3800 by 685, we get 5 with a remainder of 375.
Write down 5 as next digit of the result. 
Result so far: 22876.04525
Subtracting 3425 from 3800 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.

On to step 14:
685 goes into 3750 5 times with a remainder of 325.
Record the quotient 5 as the next digit in the result. 
Result so far: 22876.045255
The remainder is 325 after subtracting 3425 from 3750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

In conclusion, the division gives 22876.045255 with a balance of 3.25e-05.