43647760 divided by 438 
The aim is to understand the frequency of 438 in 43647760.

On to step 1:
438 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 438

Going ahead to step 2:
438 goes into 43 0 times with a remainder of 43.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 43, we end up with 43.
Take the next digit (6) from the dividend and append it to 43, then repeat: 436 / 438

On to step 3:
If we divide 436 by 438, we get 0 and a remainder of 436.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 436 to get 436.
Include the next digit (4) from the dividend after 436, then repeat: 4364 / 438

Going ahead to step 4:
438 can be fit into 4364 9 times, resulting in a remainder of 422.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we take 3942 away from 4364, we end up with 422.
Append the next digit (7) from the dividend to 422 and continue with: 4227 / 438

Let's proceed to step 5:
The number 438 fits into 4227 9 times, leaving a remainder of 285.
Write down 9 as next digit of the result. 
Result so far: 99.0
The remainder is 285 after subtracting 3942 from 4227.
Take the next digit (7) from the dividend and append it to 285, then repeat: 2857 / 438

Going ahead to step 6:
438 can be fit into 2857 6 times, resulting in a remainder of 229.
The next digit of our result is 6. 
Result so far: 996.0
Subtracting 2628 from 2857 leaves us with 229.
Append the next digit (6) from the dividend to 229 and continue with: 2296 / 438

Let's proceed to step 7:
The number 438 fits into 2296 5 times, leaving a remainder of 106.
Use 5 as the next digit of our solution. 
Result so far: 9965.0
Deduct 2190 from 2296 and we're left with 106.
Append the next digit (0) from the dividend to 106 and continue with: 1060 / 438

Advancing to step 8:
When dividing 1060 by 438, we get 2 with a remainder of 184.
Put 2 as the next digit of the answer. 
Result so far: 99652.0
If we take 876 away from 1060, we end up with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Step 9:
The number 438 fits into 1840 4 times, leaving a remainder of 88.
Write down 4 as next digit of the result. 
Result so far: 99652.4
Subtract 1752 from 1840 to get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Going ahead to step 10:
When dividing 880 by 438, we get 2 with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 99652.42
Subtract 876 from 880 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 11:
If we divide 40 by 438, we get 0 and a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 99652.42
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 12:
400 divided by 438 is 0 with a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 99652.42
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final outcome is 99652.42, with a leftover of 0.004.