55672021 divided by 680 
The aim is to understand the frequency of 680 in 55672021.

Step 1:
680 can be fit into 5 0 times, resulting in a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 680

On to step 2:
680 goes into 55 0 times with a remainder of 55.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 55, we end up with 55.
Grab the next digit (6) from the dividend, add it to 55, then carry on: 556 / 680

Let's proceed to step 3:
680 can be fit into 556 0 times, resulting in a remainder of 556.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 556 after subtracting 0 from 556.
Grab the next digit (7) from the dividend, add it to 556, then carry on: 5567 / 680

Let's proceed to step 4:
5567 divided by 680 is 8 with a remainder of 127.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 5440 from 5567, we get 127.
Grab the next digit (2) from the dividend, add it to 127, then carry on: 1272 / 680

Step 5:
When dividing 1272 by 680, we get 1 with a remainder of 592.
Put 1 as the next digit of the answer. 
Result so far: 81.0
The remainder is 592 after subtracting 680 from 1272.
Bring next digit (0) of the dividend behind the 592 and repeat the process: 5920 / 680

Advancing to step 6:
The number 680 fits into 5920 8 times, leaving a remainder of 480.
Record the quotient 8 as the next digit in the result. 
Result so far: 818.0
The remainder is 480 after subtracting 5440 from 5920.
Append the next digit (2) from the dividend to 480 and continue with: 4802 / 680

Step 7:
If we divide 4802 by 680, we get 7 and a remainder of 42.
Use 7 as the next digit of our solution. 
Result so far: 8187.0
The remainder is 42 after subtracting 4760 from 4802.
Fetch the next digit (1) from the dividend, attach it to 42 and continue: 421 / 680

Going ahead to step 8:
421 divided by 680 is 0 with a remainder of 421.
The number 0 becomes the next digit in our result. 
Result so far: 81870.0
Subtracting 0 from 421 leaves us with 421.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4210, and continue the process.

Let's proceed to step 9:
If we divide 4210 by 680, we get 6 and a remainder of 130.
The number 6 becomes the next digit in our result. 
Result so far: 81870.6
If we take 4080 away from 4210, we end up with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Step 10:
680 goes into 1300 1 times with a remainder of 620.
The next digit of our result is 1. 
Result so far: 81870.61
Subtract 680 from 1300 to get 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Advancing to step 11:
680 can be fit into 6200 9 times, resulting in a remainder of 80.
Write down 9 as next digit of the result. 
Result so far: 81870.619
Subtract 6120 from 6200 to get 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 12:
800 divided by 680 is 1 with a remainder of 120.
The next digit of our result is 1. 
Result so far: 81870.6191
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.

Step 13:
If we divide 1200 by 680, we get 1 and a remainder of 520.
The number 1 becomes the next digit in our result. 
Result so far: 81870.61911
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 81870.61911 and a remainder of 0.00052.