We look at the division of 43599239 by 959 
We're looking to find how many times 959 goes into 43599239.

Moving on to step 1:
4 divided by 959 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 959

On to step 2:
When dividing 43 by 959, we get 0 with a remainder of 43.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 43 after subtracting 0 from 43.
Take the next digit (5) from the dividend and append it to 43, then repeat: 435 / 959

Step 3:
959 goes into 435 0 times with a remainder of 435.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 435 and we're left with 435.
Append the next digit (9) from the dividend to 435 and continue with: 4359 / 959

Advancing to step 4:
959 goes into 4359 4 times with a remainder of 523.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 3836 away from 4359, we end up with 523.
Include the next digit (9) from the dividend after 523, then repeat: 5239 / 959

Moving on to step 5:
If we divide 5239 by 959, we get 5 and a remainder of 444.
Record the quotient 5 as the next digit in the result. 
Result so far: 45.0
Subtract 4795 from 5239 to get 444.
Append the next digit (2) from the dividend to 444 and continue with: 4442 / 959

Let's proceed to step 6:
959 can be fit into 4442 4 times, resulting in a remainder of 606.
The next digit of our result is 4. 
Result so far: 454.0
If we subtract 3836 from 4442, we get 606.
Fetch the next digit (3) from the dividend, attach it to 606 and continue: 6063 / 959

Moving on to step 7:
The number 959 fits into 6063 6 times, leaving a remainder of 309.
The next digit of our result is 6. 
Result so far: 4546.0
If we take 5754 away from 6063, we end up with 309.
Include the next digit (9) from the dividend after 309, then repeat: 3099 / 959

Advancing to step 8:
When dividing 3099 by 959, we get 3 with a remainder of 222.
Write down 3 as next digit of the result. 
Result so far: 45463.0
The remainder is 222 after subtracting 2877 from 3099.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Step 9:
959 can be fit into 2220 2 times, resulting in a remainder of 302.
The next digit of our result is 2. 
Result so far: 45463.2
Subtracting 1918 from 2220 leaves us with 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

Going ahead to step 10:
959 can be fit into 3020 3 times, resulting in a remainder of 143.
Put 3 as the next digit of the answer. 
Result so far: 45463.23
Subtracting 2877 from 3020 leaves us with 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

Step 11:
959 can be fit into 1430 1 times, resulting in a remainder of 471.
Record the quotient 1 as the next digit in the result. 
Result so far: 45463.231
If we subtract 959 from 1430, we get 471.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4710, and continue the process.

Going ahead to step 12:
959 goes into 4710 4 times with a remainder of 874.
The next digit of our result is 4. 
Result so far: 45463.2314
Subtract 3836 from 4710 to get 874.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8740, and continue the process.

Advancing to step 13:
959 goes into 8740 9 times with a remainder of 109.
Write down 9 as next digit of the result. 
Result so far: 45463.23149
If we subtract 8631 from 8740, we get 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Going ahead to step 14:
If we divide 1090 by 959, we get 1 and a remainder of 131.
Record the quotient 1 as the next digit in the result. 
Result so far: 45463.231491
Deduct 959 from 1090 and we're left with 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Going ahead to step 15:
1310 divided by 959 is 1 with a remainder of 351.
Record the quotient 1 as the next digit in the result. 
Result so far: 45463.2314911
Subtract 959 from 1310 to get 351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

After the division, we end up with 45463.2314911 and a remainder of 3.51e-06.