We look at the division of 216637 by 39 
We want to figure out the number of times 216637 can be divided by 39.

On to step 1:
39 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 39

On to step 2:
When dividing 21 by 39, we get 0 with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Grab the next digit (6) from the dividend, add it to 21, then carry on: 216 / 39

On to step 3:
216 divided by 39 is 5 with a remainder of 21.
The next digit of our result is 5. 
Result so far: 5.0
The remainder is 21 after subtracting 195 from 216.
Append the next digit (6) from the dividend to 21 and continue with: 216 / 39

On to step 4:
216 divided by 39 is 5 with a remainder of 21.
The next digit of our result is 5. 
Result so far: 55.0
The remainder is 21 after subtracting 195 from 216.
Take the next digit (3) from the dividend and append it to 21, then repeat: 213 / 39

On to step 5:
213 divided by 39 is 5 with a remainder of 18.
The number 5 becomes the next digit in our result. 
Result so far: 555.0
If we subtract 195 from 213, we get 18.
Bring next digit (7) of the dividend behind the 18 and repeat the process: 187 / 39

Moving on to step 6:
If we divide 187 by 39, we get 4 and a remainder of 31.
The next digit of our result is 4. 
Result so far: 5554.0
Deduct 156 from 187 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 7:
If we divide 310 by 39, we get 7 and a remainder of 37.
Put 7 as the next digit of the answer. 
Result so far: 5554.7
If we subtract 273 from 310, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 8:
If we divide 370 by 39, we get 9 and a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 5554.79
Subtract 351 from 370 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 9:
39 can be fit into 190 4 times, resulting in a remainder of 34.
Use 4 as the next digit of our solution. 
Result so far: 5554.794
Subtract 156 from 190 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 10:
When dividing 340 by 39, we get 8 with a remainder of 28.
Use 8 as the next digit of our solution. 
Result so far: 5554.7948
Subtract 312 from 340 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 11:
When dividing 280 by 39, we get 7 with a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 5554.79487
Subtracting 273 from 280 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 12:
When dividing 70 by 39, we get 1 with a remainder of 31.
The next digit of our result is 1. 
Result so far: 5554.794871
Deduct 39 from 70 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 13:
310 divided by 39 is 7 with a remainder of 37.
Put 7 as the next digit of the answer. 
Result so far: 5554.7948717
The remainder is 37 after subtracting 273 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 14:
The number 39 fits into 370 9 times, leaving a remainder of 19.
Use 9 as the next digit of our solution. 
Result so far: 5554.79487179
If we subtract 351 from 370, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The final outcome is 5554.79487179, with a leftover of 1.9e-08.