81686741 divided by 161 
Our goal is to divide 81686741 by 161.

Advancing to step 1:
When dividing 8 by 161, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 161

Let's proceed to step 2:
161 can be fit into 81 0 times, resulting in a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Bring next digit (6) of the dividend behind the 81 and repeat the process: 816 / 161

On to step 3:
If we divide 816 by 161, we get 5 and a remainder of 11.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtracting 805 from 816 leaves us with 11.
Include the next digit (8) from the dividend after 11, then repeat: 118 / 161

Advancing to step 4:
The number 161 fits into 118 0 times, leaving a remainder of 118.
Use 0 as the next digit of our solution. 
Result so far: 50.0
If we take 0 away from 118, we end up with 118.
Fetch the next digit (6) from the dividend, attach it to 118 and continue: 1186 / 161

Step 5:
If we divide 1186 by 161, we get 7 and a remainder of 59.
The number 7 becomes the next digit in our result. 
Result so far: 507.0
Subtracting 1127 from 1186 leaves us with 59.
Grab the next digit (7) from the dividend, add it to 59, then carry on: 597 / 161

Going ahead to step 6:
161 goes into 597 3 times with a remainder of 114.
Record the quotient 3 as the next digit in the result. 
Result so far: 5073.0
Subtracting 483 from 597 leaves us with 114.
Grab the next digit (4) from the dividend, add it to 114, then carry on: 1144 / 161

Moving on to step 7:
161 can be fit into 1144 7 times, resulting in a remainder of 17.
Put 7 as the next digit of the answer. 
Result so far: 50737.0
If we subtract 1127 from 1144, we get 17.
Fetch the next digit (1) from the dividend, attach it to 17 and continue: 171 / 161

Let's proceed to step 8:
If we divide 171 by 161, we get 1 and a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 507371.0
If we subtract 161 from 171, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 9:
161 goes into 100 0 times with a remainder of 100.
The next digit of our result is 0. 
Result so far: 507371.0
If we subtract 0 from 100, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 10:
When dividing 1000 by 161, we get 6 with a remainder of 34.
The number 6 becomes the next digit in our result. 
Result so far: 507371.06
The remainder is 34 after subtracting 966 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 11:
161 goes into 340 2 times with a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 507371.062
Deduct 322 from 340 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 12:
The number 161 fits into 180 1 times, leaving a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 507371.0621
The remainder is 19 after subtracting 161 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 13:
If we divide 190 by 161, we get 1 and a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 507371.06211
If we take 161 away from 190, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

The final outcome is 507371.06211, with a leftover of 2.9e-05.