638960 ÷ 61 
We're looking to find how many times 61 goes into 638960.

Step 1:
6 divided by 61 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 61

Advancing to step 2:
If we divide 63 by 61, we get 1 and a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 2 after subtracting 61 from 63.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 61

Let's proceed to step 3:
61 goes into 28 0 times with a remainder of 28.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtracting 0 from 28 leaves us with 28.
Append the next digit (9) from the dividend to 28 and continue with: 289 / 61

On to step 4:
When dividing 289 by 61, we get 4 with a remainder of 45.
Record the quotient 4 as the next digit in the result. 
Result so far: 104.0
Subtract 244 from 289 to get 45.
Fetch the next digit (6) from the dividend, attach it to 45 and continue: 456 / 61

Moving on to step 5:
61 goes into 456 7 times with a remainder of 29.
Use 7 as the next digit of our solution. 
Result so far: 1047.0
If we subtract 427 from 456, we get 29.
Append the next digit (0) from the dividend to 29 and continue with: 290 / 61

Moving on to step 6:
290 divided by 61 is 4 with a remainder of 46.
Record the quotient 4 as the next digit in the result. 
Result so far: 10474.0
If we subtract 244 from 290, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 7:
If we divide 460 by 61, we get 7 and a remainder of 33.
Record the quotient 7 as the next digit in the result. 
Result so far: 10474.7
Subtract 427 from 460 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.

Step 8:
When dividing 330 by 61, we get 5 with a remainder of 25.
The next digit of our result is 5. 
Result so far: 10474.75
Deduct 305 from 330 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 9:
61 goes into 250 4 times with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 10474.754
Subtract 244 from 250 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 10:
60 divided by 61 is 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 10474.754
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 11:
600 divided by 61 is 9 with a remainder of 51.
The next digit of our result is 9. 
Result so far: 10474.75409
If we subtract 549 from 600, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 12:
If we divide 510 by 61, we get 8 and a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 10474.754098
Subtract 488 from 510 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 13:
61 goes into 220 3 times with a remainder of 37.
Record the quotient 3 as the next digit in the result. 
Result so far: 10474.7540983
The remainder is 37 after subtracting 183 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 14:
370 divided by 61 is 6 with a remainder of 4.
The next digit of our result is 6. 
Result so far: 10474.75409836
The remainder is 4 after subtracting 366 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 10474.75409836, with a leftover of 4e-09.