Let's divide 19986183 by 628
The aim is to understand the frequency of 628 in 19986183.

Going ahead to step 1:
When dividing 1 by 628, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 628

Advancing to step 2:
If we divide 19 by 628, we get 0 and a remainder of 19.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 19 and we're left with 19.
Include the next digit (9) from the dividend after 19, then repeat: 199 / 628

Moving on to step 3:
199 divided by 628 is 0 with a remainder of 199.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 199 and we're left with 199.
Include the next digit (8) from the dividend after 199, then repeat: 1998 / 628

Going ahead to step 4:
The number 628 fits into 1998 3 times, leaving a remainder of 114.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 1884 away from 1998, we end up with 114.
Take the next digit (6) from the dividend and append it to 114, then repeat: 1146 / 628

Moving on to step 5:
628 goes into 1146 1 times with a remainder of 518.
Record the quotient 1 as the next digit in the result. 
Result so far: 31.0
Subtract 628 from 1146 to get 518.
Fetch the next digit (1) from the dividend, attach it to 518 and continue: 5181 / 628

Moving on to step 6:
628 can be fit into 5181 8 times, resulting in a remainder of 157.
Put 8 as the next digit of the answer. 
Result so far: 318.0
Subtract 5024 from 5181 to get 157.
Bring next digit (8) of the dividend behind the 157 and repeat the process: 1578 / 628

Let's proceed to step 7:
When dividing 1578 by 628, we get 2 with a remainder of 322.
Record the quotient 2 as the next digit in the result. 
Result so far: 3182.0
If we subtract 1256 from 1578, we get 322.
Fetch the next digit (3) from the dividend, attach it to 322 and continue: 3223 / 628

Advancing to step 8:
628 can be fit into 3223 5 times, resulting in a remainder of 83.
The number 5 becomes the next digit in our result. 
Result so far: 31825.0
If we subtract 3140 from 3223, we get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Advancing to step 9:
830 divided by 628 is 1 with a remainder of 202.
Use 1 as the next digit of our solution. 
Result so far: 31825.1
Subtract 628 from 830 to get 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

Advancing to step 10:
If we divide 2020 by 628, we get 3 and a remainder of 136.
Record the quotient 3 as the next digit in the result. 
Result so far: 31825.13
Subtracting 1884 from 2020 leaves us with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Step 11:
If we divide 1360 by 628, we get 2 and a remainder of 104.
Record the quotient 2 as the next digit in the result. 
Result so far: 31825.132
Subtracting 1256 from 1360 leaves us with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Step 12:
When dividing 1040 by 628, we get 1 with a remainder of 412.
Use 1 as the next digit of our solution. 
Result so far: 31825.1321
Subtract 628 from 1040 to get 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Let's proceed to step 13:
628 goes into 4120 6 times with a remainder of 352.
Put 6 as the next digit of the answer. 
Result so far: 31825.13216
Deduct 3768 from 4120 and we're left with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Going ahead to step 14:
628 can be fit into 3520 5 times, resulting in a remainder of 380.
Record the quotient 5 as the next digit in the result. 
Result so far: 31825.132165
If we subtract 3140 from 3520, we get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Going ahead to step 15:
628 can be fit into 3800 6 times, resulting in a remainder of 32.
The next digit of our result is 6. 
Result so far: 31825.1321656
Subtracting 3768 from 3800 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 16:
628 goes into 320 0 times with a remainder of 320.
The next digit of our result is 0. 
Result so far: 31825.1321656
The remainder is 320 after subtracting 0 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

In conclusion, the division gives 31825.1321656 with a balance of 3.2e-07.