Let's divide 638597 by 86
Let's see how many times 86 fits into 638597.

Advancing to step 1:
6 divided by 86 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 86

Let's proceed to step 2:
63 divided by 86 is 0 with a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 63 after subtracting 0 from 63.
Bring next digit (8) of the dividend behind the 63 and repeat the process: 638 / 86

On to step 3:
When dividing 638 by 86, we get 7 with a remainder of 36.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Deduct 602 from 638 and we're left with 36.
Fetch the next digit (5) from the dividend, attach it to 36 and continue: 365 / 86

Let's proceed to step 4:
If we divide 365 by 86, we get 4 and a remainder of 21.
Use 4 as the next digit of our solution. 
Result so far: 74.0
The remainder is 21 after subtracting 344 from 365.
Include the next digit (9) from the dividend after 21, then repeat: 219 / 86

Let's proceed to step 5:
219 divided by 86 is 2 with a remainder of 47.
The next digit of our result is 2. 
Result so far: 742.0
If we subtract 172 from 219, we get 47.
Bring next digit (7) of the dividend behind the 47 and repeat the process: 477 / 86

On to step 6:
If we divide 477 by 86, we get 5 and a remainder of 47.
The next digit of our result is 5. 
Result so far: 7425.0
The remainder is 47 after subtracting 430 from 477.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 7:
86 goes into 470 5 times with a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 7425.5
If we take 430 away from 470, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 8:
The number 86 fits into 400 4 times, leaving a remainder of 56.
Use 4 as the next digit of our solution. 
Result so far: 7425.54
Deduct 344 from 400 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 9:
If we divide 560 by 86, we get 6 and a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 7425.546
Subtracting 516 from 560 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 10:
The number 86 fits into 440 5 times, leaving a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 7425.5465
Subtracting 430 from 440 leaves us 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.

Let's proceed to step 11:
86 goes into 100 1 times with a remainder of 14.
The next digit of our result is 1. 
Result so far: 7425.54651
If we subtract 86 from 100, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 12:
When dividing 140 by 86, we get 1 with a remainder of 54.
The number 1 becomes the next digit in our result. 
Result so far: 7425.546511
Deduct 86 from 140 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

The final outcome is 7425.546511, with a leftover of 5.4e-06.