We look at the division of 20816990 by 137 
We want to divide 20816990 by 137.

Step 1:
When dividing 2 by 137, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 137

Step 2:
If we divide 20 by 137, we get 0 and a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 20 and we're left with 20.
Take the next digit (8) from the dividend and append it to 20, then repeat: 208 / 137

Advancing to step 3:
If we divide 208 by 137, we get 1 and a remainder of 71.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 71 after subtracting 137 from 208.
Include the next digit (1) from the dividend after 71, then repeat: 711 / 137

Let's proceed to step 4:
137 can be fit into 711 5 times, resulting in a remainder of 26.
Write down 5 as next digit of the result. 
Result so far: 15.0
If we subtract 685 from 711, we get 26.
Fetch the next digit (6) from the dividend, attach it to 26 and continue: 266 / 137

Step 5:
If we divide 266 by 137, we get 1 and a remainder of 129.
Put 1 as the next digit of the answer. 
Result so far: 151.0
Subtract 137 from 266 to get 129.
Bring next digit (9) of the dividend behind the 129 and repeat the process: 1299 / 137

Moving on to step 6:
The number 137 fits into 1299 9 times, leaving a remainder of 66.
Put 9 as the next digit of the answer. 
Result so far: 1519.0
The remainder is 66 after subtracting 1233 from 1299.
Append the next digit (9) from the dividend to 66 and continue with: 669 / 137

Advancing to step 7:
When dividing 669 by 137, we get 4 with a remainder of 121.
The number 4 becomes the next digit in our result. 
Result so far: 15194.0
Deduct 548 from 669 and we're left with 121.
Include the next digit (0) from the dividend after 121, then repeat: 1210 / 137

Let's proceed to step 8:
137 goes into 1210 8 times with a remainder of 114.
Record the quotient 8 as the next digit in the result. 
Result so far: 151948.0
If we subtract 1096 from 1210, we get 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Step 9:
137 can be fit into 1140 8 times, resulting in a remainder of 44.
Put 8 as the next digit of the answer. 
Result so far: 151948.8
Deduct 1096 from 1140 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 10:
If we divide 440 by 137, we get 3 and a remainder of 29.
The next digit of our result is 3. 
Result so far: 151948.83
Subtracting 411 from 440 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 11:
If we divide 290 by 137, we get 2 and a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 151948.832
Subtract 274 from 290 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 12:
When dividing 160 by 137, we get 1 with a remainder of 23.
The number 1 becomes the next digit in our result. 
Result so far: 151948.8321
Subtract 137 from 160 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 13:
137 can be fit into 230 1 times, resulting in a remainder of 93.
Write down 1 as next digit of the result. 
Result so far: 151948.83211
Deduct 137 from 230 and we're left with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

The final outcome is 151948.83211, with a leftover of 9.3e-05.