Let's divide 420294 by 86
We want to divide 420294 by 86.

Advancing to step 1:
86 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 86

Moving on to step 2:
If we divide 42 by 86, we get 0 and a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Bring next digit (0) of the dividend behind the 42 and repeat the process: 420 / 86

Advancing to step 3:
When dividing 420 by 86, we get 4 with a remainder of 76.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 344 from 420 and we're left with 76.
Bring next digit (2) of the dividend behind the 76 and repeat the process: 762 / 86

Let's proceed to step 4:
86 can be fit into 762 8 times, resulting in a remainder of 74.
Write down 8 as next digit of the result. 
Result so far: 48.0
The remainder is 74 after subtracting 688 from 762.
Take the next digit (9) from the dividend and append it to 74, then repeat: 749 / 86

Going ahead to step 5:
If we divide 749 by 86, we get 8 and a remainder of 61.
Write down 8 as next digit of the result. 
Result so far: 488.0
If we take 688 away from 749, we end up with 61.
Take the next digit (4) from the dividend and append it to 61, then repeat: 614 / 86

On to step 6:
86 goes into 614 7 times with a remainder of 12.
The number 7 becomes the next digit in our result. 
Result so far: 4887.0
Subtract 602 from 614 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 7:
86 can be fit into 120 1 times, resulting in a remainder of 34.
The number 1 becomes the next digit in our result. 
Result so far: 4887.1
Subtracting 86 from 120 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 8:
When dividing 340 by 86, we get 3 with a remainder of 82.
Record the quotient 3 as the next digit in the result. 
Result so far: 4887.13
Deduct 258 from 340 and we're left with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 9:
86 can be fit into 820 9 times, resulting in a remainder of 46.
Put 9 as the next digit of the answer. 
Result so far: 4887.139
Subtracting 774 from 820 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 10:
460 divided by 86 is 5 with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 4887.1395
If we take 430 away from 460, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 11:
300 divided by 86 is 3 with a remainder of 42.
Record the quotient 3 as the next digit in the result. 
Result so far: 4887.13953
If we subtract 258 from 300, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 12:
86 goes into 420 4 times with a remainder of 76.
Use 4 as the next digit of our solution. 
Result so far: 4887.139534
Deduct 344 from 420 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 13:
86 can be fit into 760 8 times, resulting in a remainder of 72.
The next digit of our result is 8. 
Result so far: 4887.1395348
Deduct 688 from 760 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Step 14:
86 goes into 720 8 times with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 4887.13953488
Subtracting 688 from 720 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The quotient of the division is 4887.13953488, and the remainder is 3.2e-08.