10561490 divided by 680 
The aim is to understand the frequency of 680 in 10561490.

On to step 1:
If we divide 1 by 680, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 680

Going ahead to step 2:
If we divide 10 by 680, we get 0 and a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 10 to get 10.
Bring next digit (5) of the dividend behind the 10 and repeat the process: 105 / 680

Step 3:
105 divided by 680 is 0 with a remainder of 105.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 105, we get 105.
Fetch the next digit (6) from the dividend, attach it to 105 and continue: 1056 / 680

Let's proceed to step 4:
When dividing 1056 by 680, we get 1 with a remainder of 376.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 376 after subtracting 680 from 1056.
Take the next digit (1) from the dividend and append it to 376, then repeat: 3761 / 680

On to step 5:
If we divide 3761 by 680, we get 5 and a remainder of 361.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Subtracting 3400 from 3761 leaves us with 361.
Include the next digit (4) from the dividend after 361, then repeat: 3614 / 680

Step 6:
When dividing 3614 by 680, we get 5 with a remainder of 214.
Put 5 as the next digit of the answer. 
Result so far: 155.0
If we take 3400 away from 3614, we end up with 214.
Grab the next digit (9) from the dividend, add it to 214, then carry on: 2149 / 680

On to step 7:
When dividing 2149 by 680, we get 3 with a remainder of 109.
Put 3 as the next digit of the answer. 
Result so far: 1553.0
If we take 2040 away from 2149, we end up with 109.
Grab the next digit (0) from the dividend, add it to 109, then carry on: 1090 / 680

Step 8:
When dividing 1090 by 680, we get 1 with a remainder of 410.
Put 1 as the next digit of the answer. 
Result so far: 15531.0
The remainder is 410 after subtracting 680 from 1090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Let's proceed to step 9:
When dividing 4100 by 680, we get 6 with a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 15531.6
Subtracting 4080 from 4100 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 10:
680 goes into 200 0 times with a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 15531.6
Subtract 0 from 200 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 11:
680 goes into 2000 2 times with a remainder of 640.
Record the quotient 2 as the next digit in the result. 
Result so far: 15531.602
Subtracting 1360 from 2000 leaves us 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.

Advancing to step 12:
680 goes into 6400 9 times with a remainder of 280.
Use 9 as the next digit of our solution. 
Result so far: 15531.6029
Subtract 6120 from 6400 to 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.

On to step 13:
680 goes into 2800 4 times with a remainder of 80.
The next digit of our result is 4. 
Result so far: 15531.60294
Deduct 2720 from 2800 and we're left 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.

Advancing to step 14:
When dividing 800 by 680, we get 1 with a remainder of 120.
The next digit of our result is 1. 
Result so far: 15531.602941
If we take 680 away from 800, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 15:
If we divide 1200 by 680, we get 1 and a remainder of 520.
Put 1 as the next digit of the answer. 
Result so far: 15531.6029411
The remainder is 520 after subtracting 680 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

The final outcome is 15531.6029411, with a leftover of 5.2e-06.