603943 ÷ 86 
We're looking to find how many times 86 goes into 603943.

Let's proceed to step 1:
The number 86 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 86

Moving on to step 2:
When dividing 60 by 86, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 60 to get 60.
Grab the next digit (3) from the dividend, add it to 60, then carry on: 603 / 86

Going ahead to step 3:
When dividing 603 by 86, we get 7 with a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we subtract 602 from 603, we get 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 86

Step 4:
If we divide 19 by 86, we get 0 and a remainder of 19.
The next digit of our result is 0. 
Result so far: 70.0
If we subtract 0 from 19, we get 19.
Bring next digit (4) of the dividend behind the 19 and repeat the process: 194 / 86

Moving on to step 5:
86 can be fit into 194 2 times, resulting in a remainder of 22.
Record the quotient 2 as the next digit in the result. 
Result so far: 702.0
Subtracting 172 from 194 leaves us with 22.
Bring next digit (3) of the dividend behind the 22 and repeat the process: 223 / 86

Going ahead to step 6:
When dividing 223 by 86, we get 2 with a remainder of 51.
The next digit of our result is 2. 
Result so far: 7022.0
If we take 172 away from 223, we end up with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

On to step 7:
86 goes into 510 5 times with a remainder of 80.
Write down 5 as next digit of the result. 
Result so far: 7022.5
Subtract 430 from 510 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 8:
86 can be fit into 800 9 times, resulting in a remainder of 26.
The number 9 becomes the next digit in our result. 
Result so far: 7022.59
The remainder is 26 after subtracting 774 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 9:
If we divide 260 by 86, we get 3 and a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 7022.593
Deduct 258 from 260 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 10:
The number 86 fits into 20 0 times, leaving a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 7022.593
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 11:
86 goes into 200 2 times with a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 7022.59302
Deduct 172 from 200 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 12:
86 goes into 280 3 times with a remainder of 22.
Put 3 as the next digit of the answer. 
Result so far: 7022.593023
Deduct 258 from 280 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 13:
86 can be fit into 220 2 times, resulting in a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 7022.5930232
If we take 172 away from 220, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 14:
480 divided by 86 is 5 with a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 7022.59302325
If we take 430 away from 480, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Our division results in 7022.59302325 with a remaining 5e-08.