We look at the division of 91657549 by 680 
The aim is to understand the frequency of 680 in 91657549.

Moving on to step 1:
680 can be fit into 9 0 times, resulting in a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 680

Let's proceed to step 2:
If we divide 91 by 680, we get 0 and a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Grab the next digit (6) from the dividend, add it to 91, then carry on: 916 / 680

Let's proceed to step 3:
916 divided by 680 is 1 with a remainder of 236.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 236 after subtracting 680 from 916.
Fetch the next digit (5) from the dividend, attach it to 236 and continue: 2365 / 680

On to step 4:
The number 680 fits into 2365 3 times, leaving a remainder of 325.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we take 2040 away from 2365, we end up with 325.
Fetch the next digit (7) from the dividend, attach it to 325 and continue: 3257 / 680

Advancing to step 5:
The number 680 fits into 3257 4 times, leaving a remainder of 537.
The number 4 becomes the next digit in our result. 
Result so far: 134.0
If we take 2720 away from 3257, we end up with 537.
Append the next digit (5) from the dividend to 537 and continue with: 5375 / 680

Moving on to step 6:
680 goes into 5375 7 times with a remainder of 615.
Record the quotient 7 as the next digit in the result. 
Result so far: 1347.0
The remainder is 615 after subtracting 4760 from 5375.
Fetch the next digit (4) from the dividend, attach it to 615 and continue: 6154 / 680

On to step 7:
6154 divided by 680 is 9 with a remainder of 34.
Put 9 as the next digit of the answer. 
Result so far: 13479.0
Subtracting 6120 from 6154 leaves us with 34.
Append the next digit (9) from the dividend to 34 and continue with: 349 / 680

Advancing to step 8:
680 goes into 349 0 times with a remainder of 349.
Write down 0 as next digit of the result. 
Result so far: 134790.0
If we take 0 away from 349, we end up with 349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

On to step 9:
680 can be fit into 3490 5 times, resulting in a remainder of 90.
Use 5 as the next digit of our solution. 
Result so far: 134790.5
Subtract 3400 from 3490 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 10:
900 divided by 680 is 1 with a remainder of 220.
Record the quotient 1 as the next digit in the result. 
Result so far: 134790.51
If we take 680 away from 900, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Moving on to step 11:
680 goes into 2200 3 times with a remainder of 160.
Put 3 as the next digit of the answer. 
Result so far: 134790.513
If we subtract 2040 from 2200, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 12:
When dividing 1600 by 680, we get 2 with a remainder of 240.
The number 2 becomes the next digit in our result. 
Result so far: 134790.5132
If we take 1360 away from 1600, we end up 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 13:
2400 divided by 680 is 3 with a remainder of 360.
The number 3 becomes the next digit in our result. 
Result so far: 134790.51323
If we subtract 2040 from 2400, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

On to step 14:
680 can be fit into 3600 5 times, resulting in a remainder of 200.
The next digit of our result is 5. 
Result so far: 134790.513235
If we subtract 3400 from 3600, we 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.

Going ahead to step 15:
If we divide 2000 by 680, we get 2 and a remainder of 640.
The number 2 becomes the next digit in our result. 
Result so far: 134790.5132352
Deduct 1360 from 2000 and we're left 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.

Let's proceed to step 16:
When dividing 6400 by 680, we get 9 with a remainder of 280.
Use 9 as the next digit of our solution. 
Result so far: 134790.51323529
The remainder is 280 after subtracting 6120 from 6400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Our division results in 134790.51323529 with a remaining 2.8e-07.