Let's divide 420643 by 48
Let's see how many times 48 fits into 420643.

Moving on to step 1:
When dividing 4 by 48, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 48

Advancing to step 2:
The number 48 fits into 42 0 times, leaving a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Include the next digit (0) from the dividend after 42, then repeat: 420 / 48

Moving on to step 3:
If we divide 420 by 48, we get 8 and a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 384 from 420, we get 36.
Grab the next digit (6) from the dividend, add it to 36, then carry on: 366 / 48

Advancing to step 4:
If we divide 366 by 48, we get 7 and a remainder of 30.
Use 7 as the next digit of our solution. 
Result so far: 87.0
If we take 336 away from 366, we end up with 30.
Append the next digit (4) from the dividend to 30 and continue with: 304 / 48

On to step 5:
48 can be fit into 304 6 times, resulting in a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 876.0
If we subtract 288 from 304, we get 16.
Include the next digit (3) from the dividend after 16, then repeat: 163 / 48

Step 6:
The number 48 fits into 163 3 times, leaving a remainder of 19.
Put 3 as the next digit of the answer. 
Result so far: 8763.0
Deduct 144 from 163 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 7:
48 goes into 190 3 times with a remainder of 46.
Put 3 as the next digit of the answer. 
Result so far: 8763.3
Deduct 144 from 190 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 8:
When dividing 460 by 48, we get 9 with a remainder of 28.
The next digit of our result is 9. 
Result so far: 8763.39
The remainder is 28 after subtracting 432 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 9:
When dividing 280 by 48, we get 5 with a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 8763.395
If we take 240 away from 280, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 10:
48 can be fit into 400 8 times, resulting in a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 8763.3958
Deduct 384 from 400 and we're left 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.

Advancing to step 11:
48 goes into 160 3 times with a remainder of 16.
Write down 3 as next digit of the result. 
Result so far: 8763.39583
Deduct 144 from 160 and we're left 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.

Moving on to step 12:
The number 48 fits into 160 3 times, leaving a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 8763.395833
The remainder is 16 after subtracting 144 from 160.
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 outcome is 8763.395833, with a leftover of 1.6e-06.