Let's divide 391959 by 89
We want to figure out the number of times 391959 can be divided by 89.

Step 1:
89 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 89

Going ahead to step 2:
The number 89 fits into 39 0 times, leaving a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Grab the next digit (1) from the dividend, add it to 39, then carry on: 391 / 89

Advancing to step 3:
If we divide 391 by 89, we get 4 and a remainder of 35.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 356 from 391 to get 35.
Bring next digit (9) of the dividend behind the 35 and repeat the process: 359 / 89

Going ahead to step 4:
If we divide 359 by 89, we get 4 and a remainder of 3.
Record the quotient 4 as the next digit in the result. 
Result so far: 44.0
If we subtract 356 from 359, we get 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 89

On to step 5:
The number 89 fits into 35 0 times, leaving a remainder of 35.
Write down 0 as next digit of the result. 
Result so far: 440.0
If we take 0 away from 35, we end up with 35.
Grab the next digit (9) from the dividend, add it to 35, then carry on: 359 / 89

Going ahead to step 6:
If we divide 359 by 89, we get 4 and a remainder of 3.
The next digit of our result is 4. 
Result so far: 4404.0
Deduct 356 from 359 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
89 goes into 30 0 times with a remainder of 30.
The next digit of our result is 0. 
Result so far: 4404.0
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 8:
89 can be fit into 300 3 times, resulting in a remainder of 33.
Record the quotient 3 as the next digit in the result. 
Result so far: 4404.03
Subtracting 267 from 300 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 9:
When dividing 330 by 89, we get 3 with a remainder of 63.
Put 3 as the next digit of the answer. 
Result so far: 4404.033
Deduct 267 from 330 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

After the division, we end up with 4404.033 and a remainder of 0.0063.