161858 divided by 86 
We want to figure out the number of times 161858 can be divided by 86.

Let's proceed to step 1:
86 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 86

Moving on to step 2:
86 can be fit into 16 0 times, resulting in a remainder of 16.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 16, we get 16.
Fetch the next digit (1) from the dividend, attach it to 16 and continue: 161 / 86

Let's proceed to step 3:
86 goes into 161 1 times with a remainder of 75.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 86 from 161 leaves us with 75.
Fetch the next digit (8) from the dividend, attach it to 75 and continue: 758 / 86

On to step 4:
If we divide 758 by 86, we get 8 and a remainder of 70.
Write down 8 as next digit of the result. 
Result so far: 18.0
If we subtract 688 from 758, we get 70.
Include the next digit (5) from the dividend after 70, then repeat: 705 / 86

Let's proceed to step 5:
86 can be fit into 705 8 times, resulting in a remainder of 17.
The number 8 becomes the next digit in our result. 
Result so far: 188.0
The remainder is 17 after subtracting 688 from 705.
Fetch the next digit (8) from the dividend, attach it to 17 and continue: 178 / 86

Going ahead to step 6:
When dividing 178 by 86, we get 2 with a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 1882.0
If we subtract 172 from 178, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 7:
86 can be fit into 60 0 times, resulting in a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 1882.0
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 8:
86 can be fit into 600 6 times, resulting in a remainder of 84.
The number 6 becomes the next digit in our result. 
Result so far: 1882.06
The remainder is 84 after subtracting 516 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Moving on to step 9:
86 can be fit into 840 9 times, resulting in a remainder of 66.
The next digit of our result is 9. 
Result so far: 1882.069
The remainder is 66 after subtracting 774 from 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 10:
86 goes into 660 7 times with a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 1882.0697
The remainder is 58 after subtracting 602 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 11:
86 can be fit into 580 6 times, resulting in a remainder of 64.
Put 6 as the next digit of the answer. 
Result so far: 1882.06976
Subtract 516 from 580 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 12:
640 divided by 86 is 7 with a remainder of 38.
Put 7 as the next digit of the answer. 
Result so far: 1882.069767
Subtracting 602 from 640 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 13:
86 can be fit into 380 4 times, resulting in a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 1882.0697674
Subtract 344 from 380 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 14:
The number 86 fits into 360 4 times, leaving a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 1882.06976744
Subtract 344 from 360 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 1882.06976744 and a remainder of 1.6e-08.