Let's divide 33472007 by 409
The aim is to understand the frequency of 409 in 33472007.

Step 1:
If we divide 3 by 409, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (3) from the dividend, add it to 3, then carry on: 33 / 409

Going ahead to step 2:
When dividing 33 by 409, we get 0 with a remainder of 33.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 33 and we're left with 33.
Include the next digit (4) from the dividend after 33, then repeat: 334 / 409

Going ahead to step 3:
334 divided by 409 is 0 with a remainder of 334.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 334 to get 334.
Grab the next digit (7) from the dividend, add it to 334, then carry on: 3347 / 409

Going ahead to step 4:
The number 409 fits into 3347 8 times, leaving a remainder of 75.
Use 8 as the next digit of our solution. 
Result so far: 8.0
The remainder is 75 after subtracting 3272 from 3347.
Include the next digit (2) from the dividend after 75, then repeat: 752 / 409

Let's proceed to step 5:
The number 409 fits into 752 1 times, leaving a remainder of 343.
Record the quotient 1 as the next digit in the result. 
Result so far: 81.0
If we subtract 409 from 752, we get 343.
Bring next digit (0) of the dividend behind the 343 and repeat the process: 3430 / 409

Going ahead to step 6:
When dividing 3430 by 409, we get 8 with a remainder of 158.
Record the quotient 8 as the next digit in the result. 
Result so far: 818.0
Deduct 3272 from 3430 and we're left with 158.
Append the next digit (0) from the dividend to 158 and continue with: 1580 / 409

Step 7:
409 goes into 1580 3 times with a remainder of 353.
Use 3 as the next digit of our solution. 
Result so far: 8183.0
Deduct 1227 from 1580 and we're left with 353.
Append the next digit (7) from the dividend to 353 and continue with: 3537 / 409

Moving on to step 8:
409 can be fit into 3537 8 times, resulting in a remainder of 265.
Write down 8 as next digit of the result. 
Result so far: 81838.0
If we take 3272 away from 3537, we end up with 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Advancing to step 9:
2650 divided by 409 is 6 with a remainder of 196.
Put 6 as the next digit of the answer. 
Result so far: 81838.6
Subtract 2454 from 2650 to get 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

On to step 10:
When dividing 1960 by 409, we get 4 with a remainder of 324.
Use 4 as the next digit of our solution. 
Result so far: 81838.64
If we subtract 1636 from 1960, we get 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Let's proceed to step 11:
The number 409 fits into 3240 7 times, leaving a remainder of 377.
The next digit of our result is 7. 
Result so far: 81838.647
Subtract 2863 from 3240 to get 377.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3770, and continue the process.

Moving on to step 12:
The number 409 fits into 3770 9 times, leaving a remainder of 89.
Record the quotient 9 as the next digit in the result. 
Result so far: 81838.6479
Subtract 3681 from 3770 to get 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

On to step 13:
409 can be fit into 890 2 times, resulting in a remainder of 72.
Record the quotient 2 as the next digit in the result. 
Result so far: 81838.64792
Subtract 818 from 890 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 14:
409 goes into 720 1 times with a remainder of 311.
The number 1 becomes the next digit in our result. 
Result so far: 81838.647921
If we take 409 away from 720, we end up with 311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

Let's proceed to step 15:
409 can be fit into 3110 7 times, resulting in a remainder of 247.
Put 7 as the next digit of the answer. 
Result so far: 81838.6479217
Subtract 2863 from 3110 to get 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Step 16:
409 can be fit into 2470 6 times, resulting in a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 81838.64792176
Subtracting 2454 from 2470 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.

Our division results in 81838.64792176 with a remaining 1.6e-08.