5258399 ÷ 430 
We want to divide 5258399 by 430.

Going ahead to step 1:
When dividing 5 by 430, we get 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 430

Moving on to step 2:
The number 430 fits into 52 0 times, leaving a remainder of 52.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 52 after subtracting 0 from 52.
Append the next digit (5) from the dividend to 52 and continue with: 525 / 430

Step 3:
The number 430 fits into 525 1 times, leaving a remainder of 95.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 430 from 525 and we're left with 95.
Bring next digit (8) of the dividend behind the 95 and repeat the process: 958 / 430

Going ahead to step 4:
430 goes into 958 2 times with a remainder of 98.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we take 860 away from 958, we end up with 98.
Grab the next digit (3) from the dividend, add it to 98, then carry on: 983 / 430

Advancing to step 5:
If we divide 983 by 430, we get 2 and a remainder of 123.
The number 2 becomes the next digit in our result. 
Result so far: 122.0
Subtracting 860 from 983 leaves us with 123.
Append the next digit (9) from the dividend to 123 and continue with: 1239 / 430

Moving on to step 6:
When dividing 1239 by 430, we get 2 with a remainder of 379.
Use 2 as the next digit of our solution. 
Result so far: 1222.0
The remainder is 379 after subtracting 860 from 1239.
Fetch the next digit (9) from the dividend, attach it to 379 and continue: 3799 / 430

On to step 7:
3799 divided by 430 is 8 with a remainder of 359.
Write down 8 as next digit of the result. 
Result so far: 12228.0
Subtract 3440 from 3799 to get 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

Step 8:
3590 divided by 430 is 8 with a remainder of 150.
Record the quotient 8 as the next digit in the result. 
Result so far: 12228.8
The remainder is 150 after subtracting 3440 from 3590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 9:
430 goes into 1500 3 times with a remainder of 210.
The number 3 becomes the next digit in our result. 
Result so far: 12228.83
The remainder is 210 after subtracting 1290 from 1500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Going ahead to step 10:
When dividing 2100 by 430, we get 4 with a remainder of 380.
Record the quotient 4 as the next digit in the result. 
Result so far: 12228.834
Subtracting 1720 from 2100 leaves us with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Moving on to step 11:
If we divide 3800 by 430, we get 8 and a remainder of 360.
The number 8 becomes the next digit in our result. 
Result so far: 12228.8348
Deduct 3440 from 3800 and we're left with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

On to step 12:
3600 divided by 430 is 8 with a remainder of 160.
Use 8 as the next digit of our solution. 
Result so far: 12228.83488
Subtracting 3440 from 3600 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

In conclusion, the division gives 12228.83488 with a balance of 0.00016.