2109101 ÷ 388 
The aim is to understand the frequency of 388 in 2109101.

Let's proceed to step 1:
388 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 388

Moving on to step 2:
21 divided by 388 is 0 with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Take the next digit (0) from the dividend and append it to 21, then repeat: 210 / 388

Advancing to step 3:
388 can be fit into 210 0 times, resulting in a remainder of 210.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 210 after subtracting 0 from 210.
Append the next digit (9) from the dividend to 210 and continue with: 2109 / 388

Step 4:
388 can be fit into 2109 5 times, resulting in a remainder of 169.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we take 1940 away from 2109, we end up with 169.
Fetch the next digit (1) from the dividend, attach it to 169 and continue: 1691 / 388

Advancing to step 5:
When dividing 1691 by 388, we get 4 with a remainder of 139.
Write down 4 as next digit of the result. 
Result so far: 54.0
Subtract 1552 from 1691 to get 139.
Include the next digit (0) from the dividend after 139, then repeat: 1390 / 388

Let's proceed to step 6:
388 goes into 1390 3 times with a remainder of 226.
The number 3 becomes the next digit in our result. 
Result so far: 543.0
Deduct 1164 from 1390 and we're left with 226.
Grab the next digit (1) from the dividend, add it to 226, then carry on: 2261 / 388

Let's proceed to step 7:
388 goes into 2261 5 times with a remainder of 321.
The number 5 becomes the next digit in our result. 
Result so far: 5435.0
The remainder is 321 after subtracting 1940 from 2261.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3210, and continue the process.

Let's proceed to step 8:
3210 divided by 388 is 8 with a remainder of 106.
Record the quotient 8 as the next digit in the result. 
Result so far: 5435.8
If we subtract 3104 from 3210, we get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Advancing to step 9:
When dividing 1060 by 388, we get 2 with a remainder of 284.
Use 2 as the next digit of our solution. 
Result so far: 5435.82
If we subtract 776 from 1060, we get 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Step 10:
If we divide 2840 by 388, we get 7 and a remainder of 124.
Put 7 as the next digit of the answer. 
Result so far: 5435.827
Subtracting 2716 from 2840 leaves us with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Advancing to step 11:
1240 divided by 388 is 3 with a remainder of 76.
The number 3 becomes the next digit in our result. 
Result so far: 5435.8273
The remainder is 76 after subtracting 1164 from 1240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 12:
388 goes into 760 1 times with a remainder of 372.
The next digit of our result is 1. 
Result so far: 5435.82731
If we subtract 388 from 760, we get 372.
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 13:
The number 388 fits into 3720 9 times, leaving a remainder of 228.
Record the quotient 9 as the next digit in the result. 
Result so far: 5435.827319
The remainder is 228 after subtracting 3492 from 3720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Let's proceed to step 14:
The number 388 fits into 2280 5 times, leaving a remainder of 340.
The next digit of our result is 5. 
Result so far: 5435.8273195
Deduct 1940 from 2280 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Going ahead to step 15:
If we divide 3400 by 388, we get 8 and a remainder of 296.
Use 8 as the next digit of our solution. 
Result so far: 5435.82731958
The remainder is 296 after subtracting 3104 from 3400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

In conclusion, the division gives 5435.82731958 with a balance of 2.96e-07.