We're dividing 17084807 by 438 
The aim is to understand the frequency of 438 in 17084807.

Going ahead to step 1:
1 divided by 438 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 438

Let's proceed to step 2:
438 can be fit into 17 0 times, resulting in a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 17 to get 17.
Include the next digit (0) from the dividend after 17, then repeat: 170 / 438

Going ahead to step 3:
170 divided by 438 is 0 with a remainder of 170.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 170 and we're left with 170.
Append the next digit (8) from the dividend to 170 and continue with: 1708 / 438

Let's proceed to step 4:
438 goes into 1708 3 times with a remainder of 394.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 1314 from 1708 and we're left with 394.
Append the next digit (4) from the dividend to 394 and continue with: 3944 / 438

Advancing to step 5:
If we divide 3944 by 438, we get 9 and a remainder of 2.
Write down 9 as next digit of the result. 
Result so far: 39.0
The remainder is 2 after subtracting 3942 from 3944.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 438

Let's proceed to step 6:
28 divided by 438 is 0 with a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 390.0
If we take 0 away from 28, we end up with 28.
Grab the next digit (0) from the dividend, add it to 28, then carry on: 280 / 438

On to step 7:
438 goes into 280 0 times with a remainder of 280.
Use 0 as the next digit of our solution. 
Result so far: 3900.0
Subtracting 0 from 280 leaves us with 280.
Grab the next digit (7) from the dividend, add it to 280, then carry on: 2807 / 438

Advancing to step 8:
438 goes into 2807 6 times with a remainder of 179.
Put 6 as the next digit of the answer. 
Result so far: 39006.0
The remainder is 179 after subtracting 2628 from 2807.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1790, and continue the process.

Let's proceed to step 9:
When dividing 1790 by 438, we get 4 with a remainder of 38.
The number 4 becomes the next digit in our result. 
Result so far: 39006.4
The remainder is 38 after subtracting 1752 from 1790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 10:
If we divide 380 by 438, we get 0 and a remainder of 380.
Record the quotient 0 as the next digit in the result. 
Result so far: 39006.4
The remainder is 380 after subtracting 0 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Advancing to step 11:
If we divide 3800 by 438, we get 8 and a remainder of 296.
Record the quotient 8 as the next digit in the result. 
Result so far: 39006.408
Subtract 3504 from 3800 to get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

On to step 12:
2960 divided by 438 is 6 with a remainder of 332.
The next digit of our result is 6. 
Result so far: 39006.4086
The remainder is 332 after subtracting 2628 from 2960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Going ahead to step 13:
438 goes into 3320 7 times with a remainder of 254.
The number 7 becomes the next digit in our result. 
Result so far: 39006.40867
Deduct 3066 from 3320 and we're left with 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

On to step 14:
If we divide 2540 by 438, we get 5 and a remainder of 350.
Write down 5 as next digit of the result. 
Result so far: 39006.408675
Subtracting 2190 from 2540 leaves us with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Going ahead to step 15:
The number 438 fits into 3500 7 times, leaving a remainder of 434.
Put 7 as the next digit of the answer. 
Result so far: 39006.4086757
If we subtract 3066 from 3500, we get 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

Going ahead to step 16:
The number 438 fits into 4340 9 times, leaving a remainder of 398.
Write down 9 as next digit of the result. 
Result so far: 39006.40867579
Subtract 3942 from 4340 to get 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

The quotient of the division is 39006.40867579, and the remainder is 3.98e-07.