1515540 divided by 680 
The aim is to understand the frequency of 680 in 1515540.

Step 1:
680 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 680

Advancing to step 2:
When dividing 15 by 680, we get 0 with a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Include the next digit (1) from the dividend after 15, then repeat: 151 / 680

Advancing to step 3:
If we divide 151 by 680, we get 0 and a remainder of 151.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 151 after subtracting 0 from 151.
Include the next digit (5) from the dividend after 151, then repeat: 1515 / 680

Moving on to step 4:
If we divide 1515 by 680, we get 2 and a remainder of 155.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 1360 from 1515 and we're left with 155.
Bring next digit (5) of the dividend behind the 155 and repeat the process: 1555 / 680

Let's proceed to step 5:
680 goes into 1555 2 times with a remainder of 195.
The next digit of our result is 2. 
Result so far: 22.0
Deduct 1360 from 1555 and we're left with 195.
Include the next digit (4) from the dividend after 195, then repeat: 1954 / 680

On to step 6:
680 can be fit into 1954 2 times, resulting in a remainder of 594.
Use 2 as the next digit of our solution. 
Result so far: 222.0
Subtracting 1360 from 1954 leaves us with 594.
Include the next digit (0) from the dividend after 594, then repeat: 5940 / 680

Going ahead to step 7:
5940 divided by 680 is 8 with a remainder of 500.
Write down 8 as next digit of the result. 
Result so far: 2228.0
Deduct 5440 from 5940 and we're left with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Moving on to step 8:
When dividing 5000 by 680, we get 7 with a remainder of 240.
Write down 7 as next digit of the result. 
Result so far: 2228.7
Subtracting 4760 from 5000 leaves us 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 9:
680 can be fit into 2400 3 times, resulting in a remainder of 360.
The next digit of our result is 3. 
Result so far: 2228.73
If we take 2040 away from 2400, 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.

Advancing to step 10:
680 goes into 3600 5 times with a remainder of 200.
Write down 5 as next digit of the result. 
Result so far: 2228.735
Subtracting 3400 from 3600 leaves us 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.

Moving on to step 11:
When dividing 2000 by 680, we get 2 with a remainder of 640.
Put 2 as the next digit of the answer. 
Result so far: 2228.7352
The remainder is 640 after subtracting 1360 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Advancing to step 12:
When dividing 6400 by 680, we get 9 with a remainder of 280.
Record the quotient 9 as the next digit in the result. 
Result so far: 2228.73529
If we subtract 6120 from 6400, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Going ahead to step 13:
If we divide 2800 by 680, we get 4 and a remainder of 80.
The number 4 becomes the next digit in our result. 
Result so far: 2228.735294
Subtracting 2720 from 2800 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 14:
680 can be fit into 800 1 times, resulting in a remainder of 120.
Write down 1 as next digit of the result. 
Result so far: 2228.7352941
If we subtract 680 from 800, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 15:
680 goes into 1200 1 times with a remainder of 520.
Record the quotient 1 as the next digit in the result. 
Result so far: 2228.73529411
If we take 680 away from 1200, we end up with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

After the division, we end up with 2228.73529411 and a remainder of 5.2e-07.