We're dividing 12790801 by 388 
The aim is to understand the frequency of 388 in 12790801.

On to step 1:
If we divide 1 by 388, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 388

Let's proceed to step 2:
If we divide 12 by 388, we get 0 and a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Grab the next digit (7) from the dividend, add it to 12, then carry on: 127 / 388

Advancing to step 3:
The number 388 fits into 127 0 times, leaving a remainder of 127.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 127 leaves us with 127.
Include the next digit (9) from the dividend after 127, then repeat: 1279 / 388

Let's proceed to step 4:
388 can be fit into 1279 3 times, resulting in a remainder of 115.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 1164 from 1279 and we're left with 115.
Append the next digit (0) from the dividend to 115 and continue with: 1150 / 388

Advancing to step 5:
The number 388 fits into 1150 2 times, leaving a remainder of 374.
Use 2 as the next digit of our solution. 
Result so far: 32.0
Subtract 776 from 1150 to get 374.
Append the next digit (8) from the dividend to 374 and continue with: 3748 / 388

On to step 6:
3748 divided by 388 is 9 with a remainder of 256.
Use 9 as the next digit of our solution. 
Result so far: 329.0
The remainder is 256 after subtracting 3492 from 3748.
Append the next digit (0) from the dividend to 256 and continue with: 2560 / 388

Moving on to step 7:
388 can be fit into 2560 6 times, resulting in a remainder of 232.
Put 6 as the next digit of the answer. 
Result so far: 3296.0
Subtract 2328 from 2560 to get 232.
Bring next digit (1) of the dividend behind the 232 and repeat the process: 2321 / 388

Going ahead to step 8:
The number 388 fits into 2321 5 times, leaving a remainder of 381.
Write down 5 as next digit of the result. 
Result so far: 32965.0
Deduct 1940 from 2321 and we're left with 381.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3810, and continue the process.

Moving on to step 9:
If we divide 3810 by 388, we get 9 and a remainder of 318.
The number 9 becomes the next digit in our result. 
Result so far: 32965.9
If we take 3492 away from 3810, we end up with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

On to step 10:
The number 388 fits into 3180 8 times, leaving a remainder of 76.
Put 8 as the next digit of the answer. 
Result so far: 32965.98
Subtracting 3104 from 3180 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 11:
760 divided by 388 is 1 with a remainder of 372.
Write down 1 as next digit of the result. 
Result so far: 32965.981
The remainder is 372 after subtracting 388 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Going ahead to step 12:
If we divide 3720 by 388, we get 9 and a remainder of 228.
Use 9 as the next digit of our solution. 
Result so far: 32965.9819
Subtract 3492 from 3720 to get 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

On to step 13:
When dividing 2280 by 388, we get 5 with a remainder of 340.
Put 5 as the next digit of the answer. 
Result so far: 32965.98195
The remainder is 340 after subtracting 1940 from 2280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

On to step 14:
388 goes into 3400 8 times with a remainder of 296.
Record the quotient 8 as the next digit in the result. 
Result so far: 32965.981958
Subtract 3104 from 3400 to get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Advancing to step 15:
If we divide 2960 by 388, we get 7 and a remainder of 244.
The next digit of our result is 7. 
Result so far: 32965.9819587
Subtract 2716 from 2960 to get 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Moving on to step 16:
The number 388 fits into 2440 6 times, leaving a remainder of 112.
Write down 6 as next digit of the result. 
Result so far: 32965.98195876
Subtracting 2328 from 2440 leaves us with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Our division results in 32965.98195876 with a remaining 1.12e-07.