We look at the division of 30660392 by 637 
The aim is to understand the frequency of 637 in 30660392.

Step 1:
If we divide 3 by 637, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 637

Step 2:
637 goes into 30 0 times with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 30 leaves us with 30.
Grab the next digit (6) from the dividend, add it to 30, then carry on: 306 / 637

Moving on to step 3:
The number 637 fits into 306 0 times, leaving a remainder of 306.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 306 and we're left with 306.
Take the next digit (6) from the dividend and append it to 306, then repeat: 3066 / 637

Going ahead to step 4:
637 goes into 3066 4 times with a remainder of 518.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 2548 from 3066 to get 518.
Bring next digit (0) of the dividend behind the 518 and repeat the process: 5180 / 637

Step 5:
If we divide 5180 by 637, we get 8 and a remainder of 84.
The number 8 becomes the next digit in our result. 
Result so far: 48.0
Subtract 5096 from 5180 to get 84.
Grab the next digit (3) from the dividend, add it to 84, then carry on: 843 / 637

Let's proceed to step 6:
If we divide 843 by 637, we get 1 and a remainder of 206.
Put 1 as the next digit of the answer. 
Result so far: 481.0
The remainder is 206 after subtracting 637 from 843.
Fetch the next digit (9) from the dividend, attach it to 206 and continue: 2069 / 637

Going ahead to step 7:
2069 divided by 637 is 3 with a remainder of 158.
Write down 3 as next digit of the result. 
Result so far: 4813.0
Deduct 1911 from 2069 and we're left with 158.
Grab the next digit (2) from the dividend, add it to 158, then carry on: 1582 / 637

Moving on to step 8:
The number 637 fits into 1582 2 times, leaving a remainder of 308.
Use 2 as the next digit of our solution. 
Result so far: 48132.0
Deduct 1274 from 1582 and we're left with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Moving on to step 9:
The number 637 fits into 3080 4 times, leaving a remainder of 532.
The number 4 becomes the next digit in our result. 
Result so far: 48132.4
Deduct 2548 from 3080 and we're left with 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Moving on to step 10:
637 goes into 5320 8 times with a remainder of 224.
The next digit of our result is 8. 
Result so far: 48132.48
Subtracting 5096 from 5320 leaves us with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Let's proceed to step 11:
The number 637 fits into 2240 3 times, leaving a remainder of 329.
Put 3 as the next digit of the answer. 
Result so far: 48132.483
Subtracting 1911 from 2240 leaves us with 329.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3290, and continue the process.

Let's proceed to step 12:
If we divide 3290 by 637, we get 5 and a remainder of 105.
Write down 5 as next digit of the result. 
Result so far: 48132.4835
Deduct 3185 from 3290 and we're left with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Step 13:
When dividing 1050 by 637, we get 1 with a remainder of 413.
Write down 1 as next digit of the result. 
Result so far: 48132.48351
If we take 637 away from 1050, we end up with 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

On to step 14:
637 can be fit into 4130 6 times, resulting in a remainder of 308.
The number 6 becomes the next digit in our result. 
Result so far: 48132.483516
If we subtract 3822 from 4130, we get 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Going ahead to step 15:
637 goes into 3080 4 times with a remainder of 532.
The next digit of our result is 4. 
Result so far: 48132.4835164
Subtract 2548 from 3080 to get 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Moving on to step 16:
5320 divided by 637 is 8 with a remainder of 224.
The next digit of our result is 8. 
Result so far: 48132.48351648
If we subtract 5096 from 5320, we get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

In conclusion, the division gives 48132.48351648 with a balance of 2.24e-07.