54514351 ÷ 42 
We want to divide 54514351 by 42.

Let's proceed to step 1:
The number 42 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 42

Going ahead to step 2:
The number 42 fits into 54 1 times, leaving a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 42 from 54 to get 12.
Bring next digit (5) of the dividend behind the 12 and repeat the process: 125 / 42

Step 3:
125 divided by 42 is 2 with a remainder of 41.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtract 84 from 125 to get 41.
Grab the next digit (1) from the dividend, add it to 41, then carry on: 411 / 42

Going ahead to step 4:
The number 42 fits into 411 9 times, leaving a remainder of 33.
Write down 9 as next digit of the result. 
Result so far: 129.0
If we subtract 378 from 411, we get 33.
Include the next digit (4) from the dividend after 33, then repeat: 334 / 42

Going ahead to step 5:
The number 42 fits into 334 7 times, leaving a remainder of 40.
Record the quotient 7 as the next digit in the result. 
Result so far: 1297.0
If we subtract 294 from 334, we get 40.
Include the next digit (3) from the dividend after 40, then repeat: 403 / 42

Let's proceed to step 6:
The number 42 fits into 403 9 times, leaving a remainder of 25.
Write down 9 as next digit of the result. 
Result so far: 12979.0
Deduct 378 from 403 and we're left with 25.
Grab the next digit (5) from the dividend, add it to 25, then carry on: 255 / 42

Step 7:
42 goes into 255 6 times with a remainder of 3.
Record the quotient 6 as the next digit in the result. 
Result so far: 129796.0
If we subtract 252 from 255, we get 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 42

Step 8:
When dividing 31 by 42, we get 0 with a remainder of 31.
The next digit of our result is 0. 
Result so far: 1297960.0
If we subtract 0 from 31, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 9:
310 divided by 42 is 7 with a remainder of 16.
Write down 7 as next digit of the result. 
Result so far: 1297960.7
If we take 294 away from 310, 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.

Going ahead to step 10:
42 can be fit into 160 3 times, resulting in a remainder of 34.
The number 3 becomes the next digit in our result. 
Result so far: 1297960.73
If we take 126 away from 160, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 11:
When dividing 340 by 42, we get 8 with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 1297960.738
The remainder is 4 after subtracting 336 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 12:
40 divided by 42 is 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 1297960.738
Subtracting 0 from 40 leaves us 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.

Advancing to step 13:
400 divided by 42 is 9 with a remainder of 22.
Put 9 as the next digit of the answer. 
Result so far: 1297960.73809
If we subtract 378 from 400, we 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.

Advancing to step 14:
The number 42 fits into 220 5 times, leaving a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 1297960.738095
The remainder is 10 after subtracting 210 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 15:
The number 42 fits into 100 2 times, leaving a remainder of 16.
The next digit of our result is 2. 
Result so far: 1297960.7380952
Subtract 84 from 100 to get 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 16:
42 goes into 160 3 times with a remainder of 34.
Write down 3 as next digit of the result. 
Result so far: 1297960.73809523
If we take 126 away from 160, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

In conclusion, the division gives 1297960.73809523 with a balance of 3.4e-08.