We're dividing 17665958 by 86 
We want to figure out the number of times 17665958 can be divided by 86.

Step 1:
1 divided by 86 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 86

On to step 2:
86 goes into 17 0 times with a remainder of 17.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 17, we end up with 17.
Take the next digit (6) from the dividend and append it to 17, then repeat: 176 / 86

Let's proceed to step 3:
If we divide 176 by 86, we get 2 and a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 172 from 176 leaves us with 4.
Append the next digit (6) from the dividend to 4 and continue with: 46 / 86

Advancing to step 4:
When dividing 46 by 86, we get 0 with a remainder of 46.
Write down 0 as next digit of the result. 
Result so far: 20.0
If we take 0 away from 46, we end up with 46.
Take the next digit (5) from the dividend and append it to 46, then repeat: 465 / 86

On to step 5:
465 divided by 86 is 5 with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 205.0
Subtract 430 from 465 to get 35.
Bring next digit (9) of the dividend behind the 35 and repeat the process: 359 / 86

Going ahead to step 6:
The number 86 fits into 359 4 times, leaving a remainder of 15.
The number 4 becomes the next digit in our result. 
Result so far: 2054.0
If we take 344 away from 359, we end up with 15.
Take the next digit (5) from the dividend and append it to 15, then repeat: 155 / 86

Moving on to step 7:
86 can be fit into 155 1 times, resulting in a remainder of 69.
The next digit of our result is 1. 
Result so far: 20541.0
If we subtract 86 from 155, we get 69.
Fetch the next digit (8) from the dividend, attach it to 69 and continue: 698 / 86

Moving on to step 8:
When dividing 698 by 86, we get 8 with a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 205418.0
If we take 688 away from 698, we end up with 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:
86 can be fit into 100 1 times, resulting in a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 205418.1
Deduct 86 from 100 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 10:
86 goes into 140 1 times with a remainder of 54.
Record the quotient 1 as the next digit in the result. 
Result so far: 205418.11
The remainder is 54 after subtracting 86 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

After the division, we end up with 205418.11 and a remainder of 0.054.