We divide 43389696 by 161
The aim is to understand the frequency of 161 in 43389696.

Moving on to step 1:
When dividing 4 by 161, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 161

Step 2:
If we divide 43 by 161, we get 0 and a remainder of 43.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 43 to get 43.
Fetch the next digit (3) from the dividend, attach it to 43 and continue: 433 / 161

Step 3:
433 divided by 161 is 2 with a remainder of 111.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 322 from 433 leaves us with 111.
Append the next digit (8) from the dividend to 111 and continue with: 1118 / 161

Step 4:
When dividing 1118 by 161, we get 6 with a remainder of 152.
Put 6 as the next digit of the answer. 
Result so far: 26.0
Subtract 966 from 1118 to get 152.
Fetch the next digit (9) from the dividend, attach it to 152 and continue: 1529 / 161

Step 5:
When dividing 1529 by 161, we get 9 with a remainder of 80.
The next digit of our result is 9. 
Result so far: 269.0
If we take 1449 away from 1529, we end up with 80.
Append the next digit (6) from the dividend to 80 and continue with: 806 / 161

Going ahead to step 6:
When dividing 806 by 161, we get 5 with a remainder of 1.
Record the quotient 5 as the next digit in the result. 
Result so far: 2695.0
Subtracting 805 from 806 leaves us with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 161

Moving on to step 7:
161 goes into 19 0 times with a remainder of 19.
Use 0 as the next digit of our solution. 
Result so far: 26950.0
If we subtract 0 from 19, we get 19.
Bring next digit (6) of the dividend behind the 19 and repeat the process: 196 / 161

Let's proceed to step 8:
161 can be fit into 196 1 times, resulting in a remainder of 35.
Use 1 as the next digit of our solution. 
Result so far: 269501.0
Subtract 161 from 196 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 9:
161 goes into 350 2 times with a remainder of 28.
Write down 2 as next digit of the result. 
Result so far: 269501.2
If we subtract 322 from 350, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 10:
When dividing 280 by 161, we get 1 with a remainder of 119.
Put 1 as the next digit of the answer. 
Result so far: 269501.21
If we subtract 161 from 280, we get 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Moving on to step 11:
If we divide 1190 by 161, we get 7 and a remainder of 63.
Use 7 as the next digit of our solution. 
Result so far: 269501.217
Deduct 1127 from 1190 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Going ahead to step 12:
630 divided by 161 is 3 with a remainder of 147.
Use 3 as the next digit of our solution. 
Result so far: 269501.2173
If we subtract 483 from 630, we get 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Going ahead to step 13:
The number 161 fits into 1470 9 times, leaving a remainder of 21.
The next digit of our result is 9. 
Result so far: 269501.21739
If we subtract 1449 from 1470, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 14:
161 goes into 210 1 times with a remainder of 49.
Use 1 as the next digit of our solution. 
Result so far: 269501.217391
If we subtract 161 from 210, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 15:
161 goes into 490 3 times with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 269501.2173913
Subtract 483 from 490 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 16:
If we divide 70 by 161, we get 0 and a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 269501.2173913
The remainder is 70 after subtracting 0 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final outcome is 269501.2173913, with a leftover of 7e-08.