49504645 divided by 161 
The aim is to understand the frequency of 161 in 49504645.

Step 1:
4 divided by 161 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 161

Let's proceed to step 2:
49 divided by 161 is 0 with a remainder of 49.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 49, we end up with 49.
Fetch the next digit (5) from the dividend, attach it to 49 and continue: 495 / 161

Step 3:
When dividing 495 by 161, we get 3 with a remainder of 12.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 483 from 495 and we're left with 12.
Include the next digit (0) from the dividend after 12, then repeat: 120 / 161

Moving on to step 4:
If we divide 120 by 161, we get 0 and a remainder of 120.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
Subtract 0 from 120 to get 120.
Take the next digit (4) from the dividend and append it to 120, then repeat: 1204 / 161

Going ahead to step 5:
The number 161 fits into 1204 7 times, leaving a remainder of 77.
The number 7 becomes the next digit in our result. 
Result so far: 307.0
The remainder is 77 after subtracting 1127 from 1204.
Grab the next digit (6) from the dividend, add it to 77, then carry on: 776 / 161

On to step 6:
If we divide 776 by 161, we get 4 and a remainder of 132.
Put 4 as the next digit of the answer. 
Result so far: 3074.0
The remainder is 132 after subtracting 644 from 776.
Append the next digit (4) from the dividend to 132 and continue with: 1324 / 161

Let's proceed to step 7:
1324 divided by 161 is 8 with a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 30748.0
Subtract 1288 from 1324 to get 36.
Take the next digit (5) from the dividend and append it to 36, then repeat: 365 / 161

Going ahead to step 8:
The number 161 fits into 365 2 times, leaving a remainder of 43.
Use 2 as the next digit of our solution. 
Result so far: 307482.0
If we take 322 away from 365, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 9:
161 goes into 430 2 times with a remainder of 108.
The next digit of our result is 2. 
Result so far: 307482.2
Subtracting 322 from 430 leaves us with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Step 10:
161 can be fit into 1080 6 times, resulting in a remainder of 114.
The number 6 becomes the next digit in our result. 
Result so far: 307482.26
If we take 966 away from 1080, we end up with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Advancing to step 11:
161 goes into 1140 7 times with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 307482.267
Deduct 1127 from 1140 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 12:
130 divided by 161 is 0 with a remainder of 130.
Put 0 as the next digit of the answer. 
Result so far: 307482.267
Deduct 0 from 130 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Let's proceed to step 13:
When dividing 1300 by 161, we get 8 with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 307482.26708
Subtracting 1288 from 1300 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 14:
120 divided by 161 is 0 with a remainder of 120.
Put 0 as the next digit of the answer. 
Result so far: 307482.26708
The remainder is 120 after subtracting 0 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 15:
The number 161 fits into 1200 7 times, leaving a remainder of 73.
Write down 7 as next digit of the result. 
Result so far: 307482.2670807
Subtracting 1127 from 1200 leaves us with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Moving on to step 16:
When dividing 730 by 161, we get 4 with a remainder of 86.
Put 4 as the next digit of the answer. 
Result so far: 307482.26708074
The remainder is 86 after subtracting 644 from 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

The final outcome is 307482.26708074, with a leftover of 8.6e-08.