54173972 ÷ 429 
Our goal is to divide 54173972 by 429.

Let's proceed to step 1:
If we divide 5 by 429, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 429

Advancing to step 2:
If we divide 54 by 429, we get 0 and a remainder of 54.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 54, we end up with 54.
Take the next digit (1) from the dividend and append it to 54, then repeat: 541 / 429

Going ahead to step 3:
429 goes into 541 1 times with a remainder of 112.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 112 after subtracting 429 from 541.
Fetch the next digit (7) from the dividend, attach it to 112 and continue: 1127 / 429

Step 4:
The number 429 fits into 1127 2 times, leaving a remainder of 269.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Deduct 858 from 1127 and we're left with 269.
Take the next digit (3) from the dividend and append it to 269, then repeat: 2693 / 429

Advancing to step 5:
When dividing 2693 by 429, we get 6 with a remainder of 119.
The number 6 becomes the next digit in our result. 
Result so far: 126.0
Subtract 2574 from 2693 to get 119.
Grab the next digit (9) from the dividend, add it to 119, then carry on: 1199 / 429

Step 6:
If we divide 1199 by 429, we get 2 and a remainder of 341.
The next digit of our result is 2. 
Result so far: 1262.0
Subtract 858 from 1199 to get 341.
Bring next digit (7) of the dividend behind the 341 and repeat the process: 3417 / 429

On to step 7:
If we divide 3417 by 429, we get 7 and a remainder of 414.
Put 7 as the next digit of the answer. 
Result so far: 12627.0
If we take 3003 away from 3417, we end up with 414.
Grab the next digit (2) from the dividend, add it to 414, then carry on: 4142 / 429

Going ahead to step 8:
When dividing 4142 by 429, we get 9 with a remainder of 281.
Write down 9 as next digit of the result. 
Result so far: 126279.0
If we take 3861 away from 4142, we end up with 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

Advancing to step 9:
The number 429 fits into 2810 6 times, leaving a remainder of 236.
The next digit of our result is 6. 
Result so far: 126279.6
If we take 2574 away from 2810, we end up with 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Step 10:
If we divide 2360 by 429, we get 5 and a remainder of 215.
Write down 5 as next digit of the result. 
Result so far: 126279.65
Deduct 2145 from 2360 and we're left with 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Step 11:
429 goes into 2150 5 times with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 126279.655
If we subtract 2145 from 2150, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Our division results in 126279.655 with a remaining 0.0005.