30371043 ÷ 209 
The aim is to understand the frequency of 209 in 30371043.

Let's proceed to step 1:
209 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 209

Let's proceed to step 2:
When dividing 30 by 209, we get 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Grab the next digit (3) from the dividend, add it to 30, then carry on: 303 / 209

Let's proceed to step 3:
When dividing 303 by 209, we get 1 with a remainder of 94.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 209 from 303 to get 94.
Append the next digit (7) from the dividend to 94 and continue with: 947 / 209

Moving on to step 4:
209 can be fit into 947 4 times, resulting in a remainder of 111.
Write down 4 as next digit of the result. 
Result so far: 14.0
Subtracting 836 from 947 leaves us with 111.
Include the next digit (1) from the dividend after 111, then repeat: 1111 / 209

On to step 5:
209 goes into 1111 5 times with a remainder of 66.
Use 5 as the next digit of our solution. 
Result so far: 145.0
If we take 1045 away from 1111, we end up with 66.
Bring next digit (0) of the dividend behind the 66 and repeat the process: 660 / 209

Going ahead to step 6:
209 can be fit into 660 3 times, resulting in a remainder of 33.
Put 3 as the next digit of the answer. 
Result so far: 1453.0
If we take 627 away from 660, we end up with 33.
Grab the next digit (4) from the dividend, add it to 33, then carry on: 334 / 209

Let's proceed to step 7:
334 divided by 209 is 1 with a remainder of 125.
Record the quotient 1 as the next digit in the result. 
Result so far: 14531.0
Deduct 209 from 334 and we're left with 125.
Fetch the next digit (3) from the dividend, attach it to 125 and continue: 1253 / 209

Step 8:
209 can be fit into 1253 5 times, resulting in a remainder of 208.
The number 5 becomes the next digit in our result. 
Result so far: 145315.0
If we take 1045 away from 1253, 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.

Let's proceed to step 9:
2080 divided by 209 is 9 with a remainder of 199.
The next digit of our result is 9. 
Result so far: 145315.9
The remainder is 199 after subtracting 1881 from 2080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

Going ahead to step 10:
1990 divided by 209 is 9 with a remainder of 109.
The number 9 becomes the next digit in our result. 
Result so far: 145315.99
Subtracting 1881 from 1990 leaves us with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Our division results in 145315.99 with a remaining 0.109.