90256309 divided by 430 
We want to figure out the number of times 90256309 can be divided by 430.

Step 1:
430 goes into 9 0 times with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 430

Step 2:
430 goes into 90 0 times with a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 90, we get 90.
Bring next digit (2) of the dividend behind the 90 and repeat the process: 902 / 430

Step 3:
430 can be fit into 902 2 times, resulting in a remainder of 42.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 42 after subtracting 860 from 902.
Include the next digit (5) from the dividend after 42, then repeat: 425 / 430

Let's proceed to step 4:
430 can be fit into 425 0 times, resulting in a remainder of 425.
Use 0 as the next digit of our solution. 
Result so far: 20.0
Deduct 0 from 425 and we're left with 425.
Grab the next digit (6) from the dividend, add it to 425, then carry on: 4256 / 430

Let's proceed to step 5:
430 goes into 4256 9 times with a remainder of 386.
Put 9 as the next digit of the answer. 
Result so far: 209.0
If we subtract 3870 from 4256, we get 386.
Grab the next digit (3) from the dividend, add it to 386, then carry on: 3863 / 430

Moving on to step 6:
When dividing 3863 by 430, we get 8 with a remainder of 423.
The next digit of our result is 8. 
Result so far: 2098.0
Subtract 3440 from 3863 to get 423.
Grab the next digit (0) from the dividend, add it to 423, then carry on: 4230 / 430

Let's proceed to step 7:
430 goes into 4230 9 times with a remainder of 360.
Write down 9 as next digit of the result. 
Result so far: 20989.0
The remainder is 360 after subtracting 3870 from 4230.
Fetch the next digit (9) from the dividend, attach it to 360 and continue: 3609 / 430

Advancing to step 8:
If we divide 3609 by 430, we get 8 and a remainder of 169.
Write down 8 as next digit of the result. 
Result so far: 209898.0
Deduct 3440 from 3609 and we're left with 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Let's proceed to step 9:
When dividing 1690 by 430, we get 3 with a remainder of 400.
Put 3 as the next digit of the answer. 
Result so far: 209898.3
If we take 1290 away from 1690, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 10:
When dividing 4000 by 430, we get 9 with a remainder of 130.
Put 9 as the next digit of the answer. 
Result so far: 209898.39
The remainder is 130 after subtracting 3870 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 11:
If we divide 1300 by 430, we get 3 and a remainder of 10.
The next digit of our result is 3. 
Result so far: 209898.393
Deduct 1290 from 1300 and we're left with 10.
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 12:
If we divide 100 by 430, we get 0 and a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 209898.393
Deduct 0 from 100 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 13:
430 goes into 1000 2 times with a remainder of 140.
Use 2 as the next digit of our solution. 
Result so far: 209898.39302
Subtracting 860 from 1000 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Moving on to step 14:
If we divide 1400 by 430, we get 3 and a remainder of 110.
Put 3 as the next digit of the answer. 
Result so far: 209898.393023
If we take 1290 away from 1400, we end up with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 15:
1100 divided by 430 is 2 with a remainder of 240.
The next digit of our result is 2. 
Result so far: 209898.3930232
If we subtract 860 from 1100, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 16:
430 can be fit into 2400 5 times, resulting in a remainder of 250.
The number 5 becomes the next digit in our result. 
Result so far: 209898.39302325
The remainder is 250 after subtracting 2150 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

After the division, we end up with 209898.39302325 and a remainder of 2.5e-07.