126993 divided by 86 
Let's see how many times 86 fits into 126993.

Moving on to 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
If we subtract 0 from 1, we get 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 86

Going ahead to step 2:
12 divided by 86 is 0 with a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Append the next digit (6) from the dividend to 12 and continue with: 126 / 86

Going ahead to step 3:
86 goes into 126 1 times with a remainder of 40.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 86 away from 126, we end up with 40.
Grab the next digit (9) from the dividend, add it to 40, then carry on: 409 / 86

Advancing to step 4:
86 goes into 409 4 times with a remainder of 65.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Deduct 344 from 409 and we're left with 65.
Include the next digit (9) from the dividend after 65, then repeat: 659 / 86

Let's proceed to step 5:
86 can be fit into 659 7 times, resulting in a remainder of 57.
Write down 7 as next digit of the result. 
Result so far: 147.0
If we take 602 away from 659, we end up with 57.
Fetch the next digit (3) from the dividend, attach it to 57 and continue: 573 / 86

Going ahead to step 6:
86 can be fit into 573 6 times, resulting in a remainder of 57.
Put 6 as the next digit of the answer. 
Result so far: 1476.0
Subtract 516 from 573 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 7:
570 divided by 86 is 6 with a remainder of 54.
Use 6 as the next digit of our solution. 
Result so far: 1476.6
If we subtract 516 from 570, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 8:
86 can be fit into 540 6 times, resulting in a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 1476.66
If we take 516 away from 540, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final result is 1476.66 with a remainder of 0.024.