20101990 divided by 473 
We want to figure out the number of times 20101990 can be divided by 473.

Going ahead to step 1:
473 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 473

Going ahead to step 2:
20 divided by 473 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Fetch the next digit (1) from the dividend, attach it to 20 and continue: 201 / 473

Let's proceed to step 3:
473 goes into 201 0 times with a remainder of 201.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 201 leaves us with 201.
Append the next digit (0) from the dividend to 201 and continue with: 2010 / 473

On to step 4:
473 can be fit into 2010 4 times, resulting in a remainder of 118.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 1892 from 2010 and we're left with 118.
Grab the next digit (1) from the dividend, add it to 118, then carry on: 1181 / 473

On to step 5:
473 goes into 1181 2 times with a remainder of 235.
Use 2 as the next digit of our solution. 
Result so far: 42.0
The remainder is 235 after subtracting 946 from 1181.
Take the next digit (9) from the dividend and append it to 235, then repeat: 2359 / 473

Let's proceed to step 6:
If we divide 2359 by 473, we get 4 and a remainder of 467.
Use 4 as the next digit of our solution. 
Result so far: 424.0
The remainder is 467 after subtracting 1892 from 2359.
Include the next digit (9) from the dividend after 467, then repeat: 4679 / 473

Moving on to step 7:
The number 473 fits into 4679 9 times, leaving a remainder of 422.
The number 9 becomes the next digit in our result. 
Result so far: 4249.0
Deduct 4257 from 4679 and we're left with 422.
Take the next digit (0) from the dividend and append it to 422, then repeat: 4220 / 473

Advancing to step 8:
4220 divided by 473 is 8 with a remainder of 436.
The number 8 becomes the next digit in our result. 
Result so far: 42498.0
Subtract 3784 from 4220 to get 436.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

On to step 9:
473 goes into 4360 9 times with a remainder of 103.
Put 9 as the next digit of the answer. 
Result so far: 42498.9
If we take 4257 away from 4360, we end up with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Going ahead to step 10:
473 goes into 1030 2 times with a remainder of 84.
Use 2 as the next digit of our solution. 
Result so far: 42498.92
The remainder is 84 after subtracting 946 from 1030.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Moving on to step 11:
If we divide 840 by 473, we get 1 and a remainder of 367.
Put 1 as the next digit of the answer. 
Result so far: 42498.921
If we subtract 473 from 840, we get 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

Advancing to step 12:
3670 divided by 473 is 7 with a remainder of 359.
The number 7 becomes the next digit in our result. 
Result so far: 42498.9217
Subtract 3311 from 3670 to get 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

Advancing to step 13:
3590 divided by 473 is 7 with a remainder of 279.
The next digit of our result is 7. 
Result so far: 42498.92177
If we subtract 3311 from 3590, we get 279.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

In conclusion, the division gives 42498.92177 with a balance of 0.000279.