Let's divide 48394888 by 642
Let's see how many times 642 fits into 48394888.

Moving on to step 1:
If we divide 4 by 642, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (8) from the dividend to 4 and continue with: 48 / 642

On to step 2:
The number 642 fits into 48 0 times, leaving a remainder of 48.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 48 leaves us with 48.
Fetch the next digit (3) from the dividend, attach it to 48 and continue: 483 / 642

Going ahead to step 3:
642 can be fit into 483 0 times, resulting in a remainder of 483.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 483, we get 483.
Append the next digit (9) from the dividend to 483 and continue with: 4839 / 642

Going ahead to step 4:
4839 divided by 642 is 7 with a remainder of 345.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 4494 from 4839 and we're left with 345.
Grab the next digit (4) from the dividend, add it to 345, then carry on: 3454 / 642

Going ahead to step 5:
When dividing 3454 by 642, we get 5 with a remainder of 244.
The next digit of our result is 5. 
Result so far: 75.0
Deduct 3210 from 3454 and we're left with 244.
Fetch the next digit (8) from the dividend, attach it to 244 and continue: 2448 / 642

Advancing to step 6:
642 can be fit into 2448 3 times, resulting in a remainder of 522.
Write down 3 as next digit of the result. 
Result so far: 753.0
If we take 1926 away from 2448, we end up with 522.
Bring next digit (8) of the dividend behind the 522 and repeat the process: 5228 / 642

Moving on to step 7:
The number 642 fits into 5228 8 times, leaving a remainder of 92.
Record the quotient 8 as the next digit in the result. 
Result so far: 7538.0
If we subtract 5136 from 5228, we get 92.
Fetch the next digit (8) from the dividend, attach it to 92 and continue: 928 / 642

On to step 8:
928 divided by 642 is 1 with a remainder of 286.
Use 1 as the next digit of our solution. 
Result so far: 75381.0
If we take 642 away from 928, we end up with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Moving on to step 9:
2860 divided by 642 is 4 with a remainder of 292.
Record the quotient 4 as the next digit in the result. 
Result so far: 75381.4
Deduct 2568 from 2860 and we're left with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Moving on to step 10:
The number 642 fits into 2920 4 times, leaving a remainder of 352.
Use 4 as the next digit of our solution. 
Result so far: 75381.44
Subtracting 2568 from 2920 leaves us with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

The final outcome is 75381.44, with a leftover of 0.352.