77274272 divided by 388 
The aim is to understand the frequency of 388 in 77274272.

Advancing to step 1:
The number 388 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 388

Moving on to step 2:
77 divided by 388 is 0 with a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 77 to get 77.
Append the next digit (2) from the dividend to 77 and continue with: 772 / 388

Advancing to step 3:
The number 388 fits into 772 1 times, leaving a remainder of 384.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 388 from 772, we get 384.
Fetch the next digit (7) from the dividend, attach it to 384 and continue: 3847 / 388

Advancing to step 4:
388 can be fit into 3847 9 times, resulting in a remainder of 355.
Put 9 as the next digit of the answer. 
Result so far: 19.0
Subtracting 3492 from 3847 leaves us with 355.
Fetch the next digit (4) from the dividend, attach it to 355 and continue: 3554 / 388

Advancing to step 5:
388 can be fit into 3554 9 times, resulting in a remainder of 62.
The number 9 becomes the next digit in our result. 
Result so far: 199.0
The remainder is 62 after subtracting 3492 from 3554.
Take the next digit (2) from the dividend and append it to 62, then repeat: 622 / 388

On to step 6:
388 can be fit into 622 1 times, resulting in a remainder of 234.
The next digit of our result is 1. 
Result so far: 1991.0
If we subtract 388 from 622, we get 234.
Take the next digit (7) from the dividend and append it to 234, then repeat: 2347 / 388

On to step 7:
If we divide 2347 by 388, we get 6 and a remainder of 19.
Put 6 as the next digit of the answer. 
Result so far: 19916.0
The remainder is 19 after subtracting 2328 from 2347.
Take the next digit (2) from the dividend and append it to 19, then repeat: 192 / 388

Going ahead to step 8:
The number 388 fits into 192 0 times, leaving a remainder of 192.
Put 0 as the next digit of the answer. 
Result so far: 199160.0
Deduct 0 from 192 and we're left with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Let's proceed to step 9:
1920 divided by 388 is 4 with a remainder of 368.
Record the quotient 4 as the next digit in the result. 
Result so far: 199160.4
If we take 1552 away from 1920, we end up with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Going ahead to step 10:
388 goes into 3680 9 times with a remainder of 188.
Use 9 as the next digit of our solution. 
Result so far: 199160.49
Subtracting 3492 from 3680 leaves us with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Moving on to step 11:
If we divide 1880 by 388, we get 4 and a remainder of 328.
Put 4 as the next digit of the answer. 
Result so far: 199160.494
Subtract 1552 from 1880 to get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Let's proceed to step 12:
When dividing 3280 by 388, we get 8 with a remainder of 176.
Use 8 as the next digit of our solution. 
Result so far: 199160.4948
If we subtract 3104 from 3280, we get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Moving on to step 13:
When dividing 1760 by 388, we get 4 with a remainder of 208.
Write down 4 as next digit of the result. 
Result so far: 199160.49484
If we take 1552 away from 1760, we end up with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

On to step 14:
2080 divided by 388 is 5 with a remainder of 140.
Use 5 as the next digit of our solution. 
Result so far: 199160.494845
Deduct 1940 from 2080 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Step 15:
1400 divided by 388 is 3 with a remainder of 236.
Use 3 as the next digit of our solution. 
Result so far: 199160.4948453
If we subtract 1164 from 1400, we get 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

On to step 16:
If we divide 2360 by 388, we get 6 and a remainder of 32.
The next digit of our result is 6. 
Result so far: 199160.49484536
Subtract 2328 from 2360 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 199160.49484536 and a remainder of 3.2e-08.