We divide 30163955 by 628
The aim is to understand the frequency of 628 in 30163955.

Moving on to step 1:
If we divide 3 by 628, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 628

Going ahead to step 2:
The number 628 fits into 30 0 times, leaving a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Take the next digit (1) from the dividend and append it to 30, then repeat: 301 / 628

On to step 3:
628 goes into 301 0 times with a remainder of 301.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 301 after subtracting 0 from 301.
Grab the next digit (6) from the dividend, add it to 301, then carry on: 3016 / 628

Let's proceed to step 4:
If we divide 3016 by 628, we get 4 and a remainder of 504.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 504 after subtracting 2512 from 3016.
Take the next digit (3) from the dividend and append it to 504, then repeat: 5043 / 628

On to step 5:
628 can be fit into 5043 8 times, resulting in a remainder of 19.
Use 8 as the next digit of our solution. 
Result so far: 48.0
Subtract 5024 from 5043 to get 19.
Include the next digit (9) from the dividend after 19, then repeat: 199 / 628

Going ahead to step 6:
628 goes into 199 0 times with a remainder of 199.
Record the quotient 0 as the next digit in the result. 
Result so far: 480.0
If we take 0 away from 199, we end up with 199.
Append the next digit (5) from the dividend to 199 and continue with: 1995 / 628

Advancing to step 7:
When dividing 1995 by 628, we get 3 with a remainder of 111.
Write down 3 as next digit of the result. 
Result so far: 4803.0
Deduct 1884 from 1995 and we're left with 111.
Take the next digit (5) from the dividend and append it to 111, then repeat: 1115 / 628

Advancing to step 8:
628 goes into 1115 1 times with a remainder of 487.
Record the quotient 1 as the next digit in the result. 
Result so far: 48031.0
The remainder is 487 after subtracting 628 from 1115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4870, and continue the process.

On to step 9:
4870 divided by 628 is 7 with a remainder of 474.
Record the quotient 7 as the next digit in the result. 
Result so far: 48031.7
Subtract 4396 from 4870 to get 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Going ahead to step 10:
When dividing 4740 by 628, we get 7 with a remainder of 344.
Use 7 as the next digit of our solution. 
Result so far: 48031.77
If we take 4396 away from 4740, we end up with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

The final result is 48031.77 with a remainder of 0.344.