We look at the division of 639985 by 37 
We're looking to find how many times 37 goes into 639985.

On to step 1:
6 divided by 37 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 37

Step 2:
When dividing 63 by 37, we get 1 with a remainder of 26.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 37 from 63 leaves us with 26.
Take the next digit (9) from the dividend and append it to 26, then repeat: 269 / 37

Advancing to step 3:
If we divide 269 by 37, we get 7 and a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
Subtracting 259 from 269 leaves us with 10.
Bring next digit (9) of the dividend behind the 10 and repeat the process: 109 / 37

Moving on to step 4:
109 divided by 37 is 2 with a remainder of 35.
Write down 2 as next digit of the result. 
Result so far: 172.0
Deduct 74 from 109 and we're left with 35.
Grab the next digit (8) from the dividend, add it to 35, then carry on: 358 / 37

Moving on to step 5:
If we divide 358 by 37, we get 9 and a remainder of 25.
Write down 9 as next digit of the result. 
Result so far: 1729.0
If we take 333 away from 358, we end up with 25.
Grab the next digit (5) from the dividend, add it to 25, then carry on: 255 / 37

Going ahead to step 6:
If we divide 255 by 37, we get 6 and a remainder of 33.
The next digit of our result is 6. 
Result so far: 17296.0
Subtracting 222 from 255 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 7:
The number 37 fits into 330 8 times, leaving a remainder of 34.
Put 8 as the next digit of the answer. 
Result so far: 17296.8
If we take 296 away from 330, we end up 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.

Let's proceed to step 8:
37 can be fit into 340 9 times, resulting in a remainder of 7.
The number 9 becomes the next digit in our result. 
Result so far: 17296.89
If we subtract 333 from 340, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 9:
When dividing 70 by 37, we get 1 with a remainder of 33.
Record the quotient 1 as the next digit in the result. 
Result so far: 17296.891
If we subtract 37 from 70, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 10:
330 divided by 37 is 8 with a remainder of 34.
Put 8 as the next digit of the answer. 
Result so far: 17296.8918
Subtract 296 from 330 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.

Moving on to step 11:
37 can be fit into 340 9 times, resulting in a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 17296.89189
Subtract 333 from 340 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 12:
37 goes into 70 1 times with a remainder of 33.
Record the quotient 1 as the next digit in the result. 
Result so far: 17296.891891
Subtract 37 from 70 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 13:
The number 37 fits into 330 8 times, leaving a remainder of 34.
Write down 8 as next digit of the result. 
Result so far: 17296.8918918
Subtract 296 from 330 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.

Advancing to step 14:
The number 37 fits into 340 9 times, leaving a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 17296.89189189
The remainder is 7 after subtracting 333 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

In conclusion, the division gives 17296.89189189 with a balance of 7e-09.