We're dividing 88439693 by 161 
The aim is to understand the frequency of 161 in 88439693.

On to step 1:
161 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (8) from the dividend, add it to 8, then carry on: 88 / 161

Going ahead to step 2:
When dividing 88 by 161, we get 0 with a remainder of 88.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 88 leaves us with 88.
Include the next digit (4) from the dividend after 88, then repeat: 884 / 161

Step 3:
If we divide 884 by 161, we get 5 and a remainder of 79.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtracting 805 from 884 leaves us with 79.
Grab the next digit (3) from the dividend, add it to 79, then carry on: 793 / 161

Moving on to step 4:
The number 161 fits into 793 4 times, leaving a remainder of 149.
The number 4 becomes the next digit in our result. 
Result so far: 54.0
If we take 644 away from 793, we end up with 149.
Grab the next digit (9) from the dividend, add it to 149, then carry on: 1499 / 161

Let's proceed to step 5:
If we divide 1499 by 161, we get 9 and a remainder of 50.
The number 9 becomes the next digit in our result. 
Result so far: 549.0
Deduct 1449 from 1499 and we're left with 50.
Fetch the next digit (6) from the dividend, attach it to 50 and continue: 506 / 161

On to step 6:
When dividing 506 by 161, we get 3 with a remainder of 23.
Put 3 as the next digit of the answer. 
Result so far: 5493.0
Subtract 483 from 506 to get 23.
Grab the next digit (9) from the dividend, add it to 23, then carry on: 239 / 161

Step 7:
When dividing 239 by 161, we get 1 with a remainder of 78.
Record the quotient 1 as the next digit in the result. 
Result so far: 54931.0
The remainder is 78 after subtracting 161 from 239.
Grab the next digit (3) from the dividend, add it to 78, then carry on: 783 / 161

Advancing to step 8:
161 goes into 783 4 times with a remainder of 139.
The number 4 becomes the next digit in our result. 
Result so far: 549314.0
Subtracting 644 from 783 leaves us with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Moving on to step 9:
When dividing 1390 by 161, we get 8 with a remainder of 102.
The number 8 becomes the next digit in our result. 
Result so far: 549314.8
Deduct 1288 from 1390 and we're left with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Going ahead to step 10:
161 goes into 1020 6 times with a remainder of 54.
Put 6 as the next digit of the answer. 
Result so far: 549314.86
Subtract 966 from 1020 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 11:
When dividing 540 by 161, we get 3 with a remainder of 57.
Record the quotient 3 as the next digit in the result. 
Result so far: 549314.863
If we take 483 away from 540, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 12:
The number 161 fits into 570 3 times, leaving a remainder of 87.
Put 3 as the next digit of the answer. 
Result so far: 549314.8633
Subtracting 483 from 570 leaves us with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Our division results in 549314.8633 with a remaining 0.00087.