Let's divide 402389 by 86
We're looking to find how many times 86 goes into 402389.

Going ahead to step 1:
4 divided by 86 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 86

Advancing to step 2:
86 goes into 40 0 times with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 40, we get 40.
Append the next digit (2) from the dividend to 40 and continue with: 402 / 86

Step 3:
If we divide 402 by 86, we get 4 and a remainder of 58.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 344 from 402 to get 58.
Fetch the next digit (3) from the dividend, attach it to 58 and continue: 583 / 86

Step 4:
If we divide 583 by 86, we get 6 and a remainder of 67.
The number 6 becomes the next digit in our result. 
Result so far: 46.0
Subtracting 516 from 583 leaves us with 67.
Take the next digit (8) from the dividend and append it to 67, then repeat: 678 / 86

Moving on to step 5:
If we divide 678 by 86, we get 7 and a remainder of 76.
Use 7 as the next digit of our solution. 
Result so far: 467.0
If we take 602 away from 678, we end up with 76.
Append the next digit (9) from the dividend to 76 and continue with: 769 / 86

Going ahead to step 6:
If we divide 769 by 86, we get 8 and a remainder of 81.
The number 8 becomes the next digit in our result. 
Result so far: 4678.0
Subtracting 688 from 769 leaves us with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Let's proceed to step 7:
86 goes into 810 9 times with a remainder of 36.
The number 9 becomes the next digit in our result. 
Result so far: 4678.9
Subtracting 774 from 810 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 8:
If we divide 360 by 86, we get 4 and a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 4678.94
Deduct 344 from 360 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 9:
The number 86 fits into 160 1 times, leaving a remainder of 74.
Record the quotient 1 as the next digit in the result. 
Result so far: 4678.941
Deduct 86 from 160 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 10:
86 goes into 740 8 times with a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 4678.9418
Subtracting 688 from 740 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 11:
If we divide 520 by 86, we get 6 and a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 4678.94186
The remainder is 4 after subtracting 516 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 12:
When dividing 40 by 86, we get 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 4678.94186
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 13:
If we divide 400 by 86, we get 4 and a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 4678.9418604
Subtract 344 from 400 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 14:
560 divided by 86 is 6 with a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 4678.94186046
The remainder is 44 after subtracting 516 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Our division results in 4678.94186046 with a remaining 4.4e-08.