43738161 ÷ 443 
The aim is to understand the frequency of 443 in 43738161.

Moving on to step 1:
The number 443 fits into 4 0 times, leaving a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 443

Moving on to step 2:
The number 443 fits into 43 0 times, leaving a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Append the next digit (7) from the dividend to 43 and continue with: 437 / 443

Moving on to step 3:
443 goes into 437 0 times with a remainder of 437.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 437 leaves us with 437.
Include the next digit (3) from the dividend after 437, then repeat: 4373 / 443

Advancing to step 4:
The number 443 fits into 4373 9 times, leaving a remainder of 386.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we take 3987 away from 4373, we end up with 386.
Append the next digit (8) from the dividend to 386 and continue with: 3868 / 443

Advancing to step 5:
When dividing 3868 by 443, we get 8 with a remainder of 324.
Write down 8 as next digit of the result. 
Result so far: 98.0
Deduct 3544 from 3868 and we're left with 324.
Include the next digit (1) from the dividend after 324, then repeat: 3241 / 443

On to step 6:
When dividing 3241 by 443, we get 7 with a remainder of 140.
The next digit of our result is 7. 
Result so far: 987.0
If we take 3101 away from 3241, we end up with 140.
Bring next digit (6) of the dividend behind the 140 and repeat the process: 1406 / 443

Advancing to step 7:
443 can be fit into 1406 3 times, resulting in a remainder of 77.
Record the quotient 3 as the next digit in the result. 
Result so far: 9873.0
If we take 1329 away from 1406, we end up with 77.
Fetch the next digit (1) from the dividend, attach it to 77 and continue: 771 / 443

Let's proceed to step 8:
The number 443 fits into 771 1 times, leaving a remainder of 328.
The number 1 becomes the next digit in our result. 
Result so far: 98731.0
Subtract 443 from 771 to get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Going ahead to step 9:
443 goes into 3280 7 times with a remainder of 179.
Put 7 as the next digit of the answer. 
Result so far: 98731.7
Subtract 3101 from 3280 to get 179.
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 10:
1790 divided by 443 is 4 with a remainder of 18.
Put 4 as the next digit of the answer. 
Result so far: 98731.74
Deduct 1772 from 1790 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 11:
The number 443 fits into 180 0 times, leaving a remainder of 180.
Record the quotient 0 as the next digit in the result. 
Result so far: 98731.74
If we subtract 0 from 180, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 12:
443 can be fit into 1800 4 times, resulting in a remainder of 28.
The number 4 becomes the next digit in our result. 
Result so far: 98731.7404
Deduct 1772 from 1800 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 13:
280 divided by 443 is 0 with a remainder of 280.
Use 0 as the next digit of our solution. 
Result so far: 98731.7404
If we subtract 0 from 280, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 14:
The number 443 fits into 2800 6 times, leaving a remainder of 142.
Put 6 as the next digit of the answer. 
Result so far: 98731.740406
Subtract 2658 from 2800 to get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Let's proceed to step 15:
When dividing 1420 by 443, we get 3 with a remainder of 91.
Use 3 as the next digit of our solution. 
Result so far: 98731.7404063
Subtracting 1329 from 1420 leaves us with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Step 16:
443 can be fit into 910 2 times, resulting in a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 98731.74040632
Subtract 886 from 910 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

In conclusion, the division gives 98731.74040632 with a balance of 2.4e-08.