We look at the division of 189090 by 39 
We want to figure out the number of times 189090 can be divided by 39.

Advancing to step 1:
39 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 39

On to step 2:
When dividing 18 by 39, we get 0 with a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 18, we get 18.
Fetch the next digit (9) from the dividend, attach it to 18 and continue: 189 / 39

Step 3:
39 can be fit into 189 4 times, resulting in a remainder of 33.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 33 after subtracting 156 from 189.
Append the next digit (0) from the dividend to 33 and continue with: 330 / 39

Let's proceed to step 4:
When dividing 330 by 39, we get 8 with a remainder of 18.
Put 8 as the next digit of the answer. 
Result so far: 48.0
If we subtract 312 from 330, we get 18.
Bring next digit (9) of the dividend behind the 18 and repeat the process: 189 / 39

Step 5:
189 divided by 39 is 4 with a remainder of 33.
The next digit of our result is 4. 
Result so far: 484.0
If we subtract 156 from 189, we get 33.
Bring next digit (0) of the dividend behind the 33 and repeat the process: 330 / 39

Going ahead to step 6:
The number 39 fits into 330 8 times, leaving a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 4848.0
Deduct 312 from 330 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 7:
The number 39 fits into 180 4 times, leaving a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 4848.4
If we take 156 away from 180, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 8:
If we divide 240 by 39, we get 6 and a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 4848.46
If we subtract 234 from 240, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 9:
The number 39 fits into 60 1 times, leaving a remainder of 21.
Use 1 as the next digit of our solution. 
Result so far: 4848.461
If we take 39 away from 60, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 10:
If we divide 210 by 39, we get 5 and a remainder of 15.
The next digit of our result is 5. 
Result so far: 4848.4615
Subtract 195 from 210 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 11:
If we divide 150 by 39, we get 3 and a remainder of 33.
The number 3 becomes the next digit in our result. 
Result so far: 4848.46153
If we take 117 away from 150, we end up 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.

Going ahead to step 12:
330 divided by 39 is 8 with a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 4848.461538
Deduct 312 from 330 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 13:
The number 39 fits into 180 4 times, leaving a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 4848.4615384
If we subtract 156 from 180, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 14:
240 divided by 39 is 6 with a remainder of 6.
The next digit of our result is 6. 
Result so far: 4848.46153846
The remainder is 6 after subtracting 234 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final outcome is 4848.46153846, with a leftover of 6e-09.