We're dividing 20700551 by 139 
We're looking to find how many times 139 goes into 20700551.

Step 1:
When dividing 2 by 139, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 139

Let's proceed to step 2:
20 divided by 139 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Append the next digit (7) from the dividend to 20 and continue with: 207 / 139

Moving on to step 3:
207 divided by 139 is 1 with a remainder of 68.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 139 from 207 and we're left with 68.
Take the next digit (0) from the dividend and append it to 68, then repeat: 680 / 139

On to step 4:
The number 139 fits into 680 4 times, leaving a remainder of 124.
Write down 4 as next digit of the result. 
Result so far: 14.0
If we subtract 556 from 680, we get 124.
Take the next digit (0) from the dividend and append it to 124, then repeat: 1240 / 139

Step 5:
139 goes into 1240 8 times with a remainder of 128.
The next digit of our result is 8. 
Result so far: 148.0
If we subtract 1112 from 1240, we get 128.
Include the next digit (5) from the dividend after 128, then repeat: 1285 / 139

On to step 6:
If we divide 1285 by 139, we get 9 and a remainder of 34.
The number 9 becomes the next digit in our result. 
Result so far: 1489.0
The remainder is 34 after subtracting 1251 from 1285.
Append the next digit (5) from the dividend to 34 and continue with: 345 / 139

Let's proceed to step 7:
When dividing 345 by 139, we get 2 with a remainder of 67.
Put 2 as the next digit of the answer. 
Result so far: 14892.0
If we subtract 278 from 345, we get 67.
Include the next digit (1) from the dividend after 67, then repeat: 671 / 139

Going ahead to step 8:
If we divide 671 by 139, we get 4 and a remainder of 115.
Put 4 as the next digit of the answer. 
Result so far: 148924.0
Subtract 556 from 671 to get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Let's proceed to step 9:
139 goes into 1150 8 times with a remainder of 38.
The next digit of our result is 8. 
Result so far: 148924.8
Subtract 1112 from 1150 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 10:
When dividing 380 by 139, we get 2 with a remainder of 102.
The number 2 becomes the next digit in our result. 
Result so far: 148924.82
Subtracting 278 from 380 leaves us with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

On to step 11:
139 can be fit into 1020 7 times, resulting in a remainder of 47.
The next digit of our result is 7. 
Result so far: 148924.827
If we subtract 973 from 1020, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 12:
When dividing 470 by 139, we get 3 with a remainder of 53.
Put 3 as the next digit of the answer. 
Result so far: 148924.8273
If we subtract 417 from 470, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Going ahead to step 13:
The number 139 fits into 530 3 times, leaving a remainder of 113.
The next digit of our result is 3. 
Result so far: 148924.82733
Deduct 417 from 530 and we're left with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

The final result is 148924.82733 with a remainder of 0.000113.