We're dividing 643428 by 61 
We want to figure out the number of times 643428 can be divided by 61.

Going ahead to step 1:
If we divide 6 by 61, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 61

Moving on to step 2:
61 can be fit into 64 1 times, resulting in a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 3 after subtracting 61 from 64.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 61

On to step 3:
When dividing 33 by 61, we get 0 with a remainder of 33.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtract 0 from 33 to get 33.
Append the next digit (4) from the dividend to 33 and continue with: 334 / 61

Advancing to step 4:
When dividing 334 by 61, we get 5 with a remainder of 29.
Put 5 as the next digit of the answer. 
Result so far: 105.0
If we take 305 away from 334, we end up with 29.
Append the next digit (2) from the dividend to 29 and continue with: 292 / 61

Going ahead to step 5:
61 goes into 292 4 times with a remainder of 48.
Put 4 as the next digit of the answer. 
Result so far: 1054.0
Subtract 244 from 292 to get 48.
Append the next digit (8) from the dividend to 48 and continue with: 488 / 61

Going ahead to step 6:
The number 61 fits into 488 8 times, leaving a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 10548.0
The remainder is 0 after subtracting 488 from 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 7:
When dividing 0 by 61, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 10548.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
61 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 10548.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 10548.0 with a balance of 0.0.