We're dividing 28443365 by 210 
The aim is to understand the frequency of 210 in 28443365.

On to step 1:
210 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 210

Let's proceed to step 2:
The number 210 fits into 28 0 times, leaving a remainder of 28.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 28, we end up with 28.
Append the next digit (4) from the dividend to 28 and continue with: 284 / 210

Let's proceed to step 3:
When dividing 284 by 210, we get 1 with a remainder of 74.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 210 from 284, we get 74.
Bring next digit (4) of the dividend behind the 74 and repeat the process: 744 / 210

Going ahead to step 4:
210 can be fit into 744 3 times, resulting in a remainder of 114.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtracting 630 from 744 leaves us with 114.
Fetch the next digit (3) from the dividend, attach it to 114 and continue: 1143 / 210

Let's proceed to step 5:
210 goes into 1143 5 times with a remainder of 93.
The number 5 becomes the next digit in our result. 
Result so far: 135.0
If we subtract 1050 from 1143, we get 93.
Include the next digit (3) from the dividend after 93, then repeat: 933 / 210

Advancing to step 6:
If we divide 933 by 210, we get 4 and a remainder of 93.
The number 4 becomes the next digit in our result. 
Result so far: 1354.0
If we subtract 840 from 933, we get 93.
Append the next digit (6) from the dividend to 93 and continue with: 936 / 210

Going ahead to step 7:
210 can be fit into 936 4 times, resulting in a remainder of 96.
The number 4 becomes the next digit in our result. 
Result so far: 13544.0
Subtracting 840 from 936 leaves us with 96.
Take the next digit (5) from the dividend and append it to 96, then repeat: 965 / 210

Advancing to step 8:
When dividing 965 by 210, we get 4 with a remainder of 125.
Write down 4 as next digit of the result. 
Result so far: 135444.0
Subtract 840 from 965 to get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

On to step 9:
210 can be fit into 1250 5 times, resulting in a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 135444.5
If we take 1050 away from 1250, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 10:
If we divide 2000 by 210, we get 9 and a remainder of 110.
The next digit of our result is 9. 
Result so far: 135444.59
If we subtract 1890 from 2000, we get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Moving on to step 11:
When dividing 1100 by 210, we get 5 with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 135444.595
The remainder is 50 after subtracting 1050 from 1100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 12:
When dividing 500 by 210, we get 2 with a remainder of 80.
Record the quotient 2 as the next digit in the result. 
Result so far: 135444.5952
The remainder is 80 after subtracting 420 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 13:
When dividing 800 by 210, we get 3 with a remainder of 170.
Use 3 as the next digit of our solution. 
Result so far: 135444.59523
Subtracting 630 from 800 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Let's proceed to step 14:
210 goes into 1700 8 times with a remainder of 20.
The number 8 becomes the next digit in our result. 
Result so far: 135444.595238
If we take 1680 away from 1700, 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.

Going ahead to step 15:
When dividing 200 by 210, we get 0 with a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 135444.595238
Subtracting 0 from 200 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 16:
The number 210 fits into 2000 9 times, leaving a remainder of 110.
The next digit of our result is 9. 
Result so far: 135444.59523809
If we subtract 1890 from 2000, we get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

After the division, we end up with 135444.59523809 and a remainder of 1.1e-07.