We look at the division of 639986 by 93 
Let's see how many times 93 fits into 639986.

On to step 1:
6 divided by 93 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 93

Step 2:
93 can be fit into 63 0 times, resulting in a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 63, we get 63.
Append the next digit (9) from the dividend to 63 and continue with: 639 / 93

On to step 3:
When dividing 639 by 93, we get 6 with a remainder of 81.
Write down 6 as next digit of the result. 
Result so far: 6.0
Deduct 558 from 639 and we're left with 81.
Grab the next digit (9) from the dividend, add it to 81, then carry on: 819 / 93

On to step 4:
The number 93 fits into 819 8 times, leaving a remainder of 75.
Put 8 as the next digit of the answer. 
Result so far: 68.0
Deduct 744 from 819 and we're left with 75.
Append the next digit (8) from the dividend to 75 and continue with: 758 / 93

On to step 5:
When dividing 758 by 93, we get 8 with a remainder of 14.
The number 8 becomes the next digit in our result. 
Result so far: 688.0
Subtract 744 from 758 to get 14.
Fetch the next digit (6) from the dividend, attach it to 14 and continue: 146 / 93

Advancing to step 6:
146 divided by 93 is 1 with a remainder of 53.
Use 1 as the next digit of our solution. 
Result so far: 6881.0
If we subtract 93 from 146, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

On to step 7:
93 can be fit into 530 5 times, resulting in a remainder of 65.
The number 5 becomes the next digit in our result. 
Result so far: 6881.5
The remainder is 65 after subtracting 465 from 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 8:
93 goes into 650 6 times with a remainder of 92.
The next digit of our result is 6. 
Result so far: 6881.56
If we subtract 558 from 650, we get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Going ahead to step 9:
When dividing 920 by 93, we get 9 with a remainder of 83.
Record the quotient 9 as the next digit in the result. 
Result so far: 6881.569
Subtract 837 from 920 to get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Going ahead to step 10:
If we divide 830 by 93, we get 8 and a remainder of 86.
Put 8 as the next digit of the answer. 
Result so far: 6881.5698
If we take 744 away from 830, we end up with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 11:
860 divided by 93 is 9 with a remainder of 23.
Put 9 as the next digit of the answer. 
Result so far: 6881.56989
If we take 837 away from 860, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 12:
The number 93 fits into 230 2 times, leaving a remainder of 44.
The next digit of our result is 2. 
Result so far: 6881.569892
Deduct 186 from 230 and we're left 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.

Moving on to step 13:
93 can be fit into 440 4 times, resulting in a remainder of 68.
Put 4 as the next digit of the answer. 
Result so far: 6881.5698924
Subtract 372 from 440 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 14:
When dividing 680 by 93, we get 7 with a remainder of 29.
Put 7 as the next digit of the answer. 
Result so far: 6881.56989247
Subtract 651 from 680 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

After the division, we end up with 6881.56989247 and a remainder of 2.9e-08.