We're dividing 80147864 by 161 
The aim is to understand the frequency of 161 in 80147864.

Moving on to step 1:
The number 161 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 161

Advancing to step 2:
The number 161 fits into 80 0 times, leaving a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 80, we end up with 80.
Fetch the next digit (1) from the dividend, attach it to 80 and continue: 801 / 161

Going ahead to step 3:
The number 161 fits into 801 4 times, leaving a remainder of 157.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 644 away from 801, we end up with 157.
Fetch the next digit (4) from the dividend, attach it to 157 and continue: 1574 / 161

On to step 4:
1574 divided by 161 is 9 with a remainder of 125.
Use 9 as the next digit of our solution. 
Result so far: 49.0
If we subtract 1449 from 1574, we get 125.
Append the next digit (7) from the dividend to 125 and continue with: 1257 / 161

Let's proceed to step 5:
161 can be fit into 1257 7 times, resulting in a remainder of 130.
Record the quotient 7 as the next digit in the result. 
Result so far: 497.0
If we take 1127 away from 1257, we end up with 130.
Include the next digit (8) from the dividend after 130, then repeat: 1308 / 161

Moving on to step 6:
If we divide 1308 by 161, we get 8 and a remainder of 20.
The number 8 becomes the next digit in our result. 
Result so far: 4978.0
If we take 1288 away from 1308, we end up with 20.
Fetch the next digit (6) from the dividend, attach it to 20 and continue: 206 / 161

On to step 7:
161 can be fit into 206 1 times, resulting in a remainder of 45.
Put 1 as the next digit of the answer. 
Result so far: 49781.0
Deduct 161 from 206 and we're left with 45.
Include the next digit (4) from the dividend after 45, then repeat: 454 / 161

On to step 8:
When dividing 454 by 161, we get 2 with a remainder of 132.
Record the quotient 2 as the next digit in the result. 
Result so far: 497812.0
Subtracting 322 from 454 leaves us with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Going ahead to step 9:
If we divide 1320 by 161, we get 8 and a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 497812.8
Subtract 1288 from 1320 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 10:
If we divide 320 by 161, we get 1 and a remainder of 159.
Record the quotient 1 as the next digit in the result. 
Result so far: 497812.81
The remainder is 159 after subtracting 161 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Moving on to step 11:
1590 divided by 161 is 9 with a remainder of 141.
Record the quotient 9 as the next digit in the result. 
Result so far: 497812.819
Subtracting 1449 from 1590 leaves us with 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Moving on to step 12:
1410 divided by 161 is 8 with a remainder of 122.
The number 8 becomes the next digit in our result. 
Result so far: 497812.8198
Deduct 1288 from 1410 and we're left with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Going ahead to step 13:
When dividing 1220 by 161, we get 7 with a remainder of 93.
Put 7 as the next digit of the answer. 
Result so far: 497812.81987
The remainder is 93 after subtracting 1127 from 1220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Let's proceed to step 14:
930 divided by 161 is 5 with a remainder of 125.
Put 5 as the next digit of the answer. 
Result so far: 497812.819875
Deduct 805 from 930 and we're left with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Advancing to step 15:
When dividing 1250 by 161, we get 7 with a remainder of 123.
Record the quotient 7 as the next digit in the result. 
Result so far: 497812.8198757
If we take 1127 away from 1250, we end up with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Advancing to step 16:
The number 161 fits into 1230 7 times, leaving a remainder of 103.
Record the quotient 7 as the next digit in the result. 
Result so far: 497812.81987577
If we take 1127 away from 1230, we end up with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

The final outcome is 497812.81987577, with a leftover of 1.03e-07.