99590343 ÷ 964 
Let's see how many times 964 fits into 99590343.

Moving on to step 1:
When dividing 9 by 964, we get 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 964

Let's proceed to step 2:
If we divide 99 by 964, we get 0 and a remainder of 99.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 99 after subtracting 0 from 99.
Take the next digit (5) from the dividend and append it to 99, then repeat: 995 / 964

Going ahead to step 3:
The number 964 fits into 995 1 times, leaving a remainder of 31.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 964 from 995 leaves us with 31.
Take the next digit (9) from the dividend and append it to 31, then repeat: 319 / 964

Let's proceed to step 4:
319 divided by 964 is 0 with a remainder of 319.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we take 0 away from 319, we end up with 319.
Grab the next digit (0) from the dividend, add it to 319, then carry on: 3190 / 964

Moving on to step 5:
964 goes into 3190 3 times with a remainder of 298.
The next digit of our result is 3. 
Result so far: 103.0
The remainder is 298 after subtracting 2892 from 3190.
Grab the next digit (3) from the dividend, add it to 298, then carry on: 2983 / 964

Let's proceed to step 6:
If we divide 2983 by 964, we get 3 and a remainder of 91.
The number 3 becomes the next digit in our result. 
Result so far: 1033.0
If we subtract 2892 from 2983, we get 91.
Bring next digit (4) of the dividend behind the 91 and repeat the process: 914 / 964

On to step 7:
When dividing 914 by 964, we get 0 with a remainder of 914.
Put 0 as the next digit of the answer. 
Result so far: 10330.0
If we take 0 away from 914, we end up with 914.
Grab the next digit (3) from the dividend, add it to 914, then carry on: 9143 / 964

Going ahead to step 8:
9143 divided by 964 is 9 with a remainder of 467.
Use 9 as the next digit of our solution. 
Result so far: 103309.0
Subtract 8676 from 9143 to get 467.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4670, and continue the process.

Going ahead to step 9:
964 can be fit into 4670 4 times, resulting in a remainder of 814.
Write down 4 as next digit of the result. 
Result so far: 103309.4
If we take 3856 away from 4670, we end up with 814.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8140, and continue the process.

Step 10:
If we divide 8140 by 964, we get 8 and a remainder of 428.
Use 8 as the next digit of our solution. 
Result so far: 103309.48
Deduct 7712 from 8140 and we're left with 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

Step 11:
4280 divided by 964 is 4 with a remainder of 424.
The number 4 becomes the next digit in our result. 
Result so far: 103309.484
Subtracting 3856 from 4280 leaves us with 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Step 12:
4240 divided by 964 is 4 with a remainder of 384.
Use 4 as the next digit of our solution. 
Result so far: 103309.4844
Deduct 3856 from 4240 and we're left with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

The final result is 103309.4844 with a remainder of 0.00384.