371605 divided by 28 
The aim is to understand the frequency of 28 in 371605.

Step 1:
When dividing 3 by 28, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 28

On to step 2:
When dividing 37 by 28, we get 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 28 from 37 to get 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 28

Advancing to step 3:
When dividing 91 by 28, we get 3 with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we take 84 away from 91, we end up with 7.
Append the next digit (6) from the dividend to 7 and continue with: 76 / 28

On to step 4:
28 goes into 76 2 times with a remainder of 20.
The next digit of our result is 2. 
Result so far: 132.0
If we subtract 56 from 76, we get 20.
Include the next digit (0) from the dividend after 20, then repeat: 200 / 28

Advancing to step 5:
If we divide 200 by 28, we get 7 and a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 1327.0
Subtracting 196 from 200 leaves us with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 28

Step 6:
45 divided by 28 is 1 with a remainder of 17.
The next digit of our result is 1. 
Result so far: 13271.0
Subtract 28 from 45 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 7:
The number 28 fits into 170 6 times, leaving a remainder of 2.
The next digit of our result is 6. 
Result so far: 13271.6
Deduct 168 from 170 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 8:
The number 28 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 13271.6
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
The number 28 fits into 200 7 times, leaving a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 13271.607
The remainder is 4 after subtracting 196 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 10:
When dividing 40 by 28, we get 1 with a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 13271.6071
The remainder is 12 after subtracting 28 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 11:
28 can be fit into 120 4 times, resulting in a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 13271.60714
The remainder is 8 after subtracting 112 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 12:
28 can be fit into 80 2 times, resulting in a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 13271.607142
Deduct 56 from 80 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 13:
28 can be fit into 240 8 times, resulting in a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 13271.6071428
Subtracting 224 from 240 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 14:
The number 28 fits into 160 5 times, leaving a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 13271.60714285
If we take 140 away from 160, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The quotient of the division is 13271.60714285, and the remainder is 2e-08.