668416 ÷ 53 
The aim is to understand the frequency of 53 in 668416.

On to step 1:
The number 53 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 53

Advancing to step 2:
If we divide 66 by 53, we get 1 and a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 13 after subtracting 53 from 66.
Bring next digit (8) of the dividend behind the 13 and repeat the process: 138 / 53

Moving on to step 3:
When dividing 138 by 53, we get 2 with a remainder of 32.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
If we subtract 106 from 138, we get 32.
Grab the next digit (4) from the dividend, add it to 32, then carry on: 324 / 53

On to step 4:
If we divide 324 by 53, we get 6 and a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 126.0
The remainder is 6 after subtracting 318 from 324.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 53

Going ahead to step 5:
61 divided by 53 is 1 with a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 1261.0
If we take 53 away from 61, we end up with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 53

Going ahead to step 6:
When dividing 86 by 53, we get 1 with a remainder of 33.
Use 1 as the next digit of our solution. 
Result so far: 12611.0
Subtract 53 from 86 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 7:
If we divide 330 by 53, we get 6 and a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 12611.6
If we take 318 away from 330, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 8:
When dividing 120 by 53, we get 2 with a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 12611.62
Subtract 106 from 120 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 9:
53 can be fit into 140 2 times, resulting in a remainder of 34.
The next digit of our result is 2. 
Result so far: 12611.622
The remainder is 34 after subtracting 106 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

The quotient of the division is 12611.622, and the remainder is 0.0034.