We look at the division of 19905673 by 261 
Let's see how many times 261 fits into 19905673.

On to step 1:
261 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 261

Going ahead to step 2:
261 can be fit into 19 0 times, resulting in a remainder of 19.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 19, we get 19.
Append the next digit (9) from the dividend to 19 and continue with: 199 / 261

Let's proceed to step 3:
261 goes into 199 0 times with a remainder of 199.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 199 and we're left with 199.
Grab the next digit (0) from the dividend, add it to 199, then carry on: 1990 / 261

Advancing to step 4:
1990 divided by 261 is 7 with a remainder of 163.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtract 1827 from 1990 to get 163.
Take the next digit (5) from the dividend and append it to 163, then repeat: 1635 / 261

Let's proceed to step 5:
261 goes into 1635 6 times with a remainder of 69.
Write down 6 as next digit of the result. 
Result so far: 76.0
Deduct 1566 from 1635 and we're left with 69.
Bring next digit (6) of the dividend behind the 69 and repeat the process: 696 / 261

On to step 6:
When dividing 696 by 261, we get 2 with a remainder of 174.
The next digit of our result is 2. 
Result so far: 762.0
The remainder is 174 after subtracting 522 from 696.
Fetch the next digit (7) from the dividend, attach it to 174 and continue: 1747 / 261

Moving on to step 7:
1747 divided by 261 is 6 with a remainder of 181.
Use 6 as the next digit of our solution. 
Result so far: 7626.0
Subtracting 1566 from 1747 leaves us with 181.
Include the next digit (3) from the dividend after 181, then repeat: 1813 / 261

Going ahead to step 8:
261 can be fit into 1813 6 times, resulting in a remainder of 247.
The number 6 becomes the next digit in our result. 
Result so far: 76266.0
Subtract 1566 from 1813 to get 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Going ahead to step 9:
If we divide 2470 by 261, we get 9 and a remainder of 121.
Put 9 as the next digit of the answer. 
Result so far: 76266.9
If we take 2349 away from 2470, we end up with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Going ahead to step 10:
If we divide 1210 by 261, we get 4 and a remainder of 166.
Use 4 as the next digit of our solution. 
Result so far: 76266.94
Subtracting 1044 from 1210 leaves us with 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Step 11:
1660 divided by 261 is 6 with a remainder of 94.
Record the quotient 6 as the next digit in the result. 
Result so far: 76266.946
Subtracting 1566 from 1660 leaves us with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Advancing to step 12:
The number 261 fits into 940 3 times, leaving a remainder of 157.
Put 3 as the next digit of the answer. 
Result so far: 76266.9463
If we subtract 783 from 940, we get 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Advancing to step 13:
1570 divided by 261 is 6 with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 76266.94636
Deduct 1566 from 1570 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 14:
40 divided by 261 is 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 76266.94636
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 15:
If we divide 400 by 261, we get 1 and a remainder of 139.
The number 1 becomes the next digit in our result. 
Result so far: 76266.9463601
Subtracting 261 from 400 leaves us with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Step 16:
261 can be fit into 1390 5 times, resulting in a remainder of 85.
Use 5 as the next digit of our solution. 
Result so far: 76266.94636015
Subtracting 1305 from 1390 leaves us with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

The final outcome is 76266.94636015, with a leftover of 8.5e-08.