We're dividing 64620 by 61 
We want to figure out the number of times 64620 can be divided by 61.

On to step 1:
When dividing 6 by 61, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 61

Step 2:
When dividing 64 by 61, we get 1 with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 61 from 64 to get 3.
Include the next digit (6) from the dividend after 3, then repeat: 36 / 61

Going ahead to step 3:
When dividing 36 by 61, we get 0 with a remainder of 36.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Deduct 0 from 36 and we're left with 36.
Bring next digit (2) of the dividend behind the 36 and repeat the process: 362 / 61

On to step 4:
When dividing 362 by 61, we get 5 with a remainder of 57.
The number 5 becomes the next digit in our result. 
Result so far: 105.0
Subtract 305 from 362 to get 57.
Grab the next digit (0) from the dividend, add it to 57, then carry on: 570 / 61

Going ahead to step 5:
The number 61 fits into 570 9 times, leaving a remainder of 21.
Put 9 as the next digit of the answer. 
Result so far: 1059.0
Deduct 549 from 570 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 6:
61 goes into 210 3 times with a remainder of 27.
Record the quotient 3 as the next digit in the result. 
Result so far: 1059.3
If we take 183 away from 210, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 7:
If we divide 270 by 61, we get 4 and a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 1059.34
Subtract 244 from 270 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 8:
When dividing 260 by 61, we get 4 with a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 1059.344
If we take 244 away from 260, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final result is 1059.344 with a remainder of 0.0016.