Let's divide 20687438 by 139
We want to figure out the number of times 20687438 can be divided by 139.

Advancing to step 1:
2 divided by 139 is 0 with a remainder of 2.
The number 0 becomes the next digit in our 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

Advancing to step 2:
20 divided by 139 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Grab the next digit (6) from the dividend, add it to 20, then carry on: 206 / 139

Advancing to step 3:
The number 139 fits into 206 1 times, leaving a remainder of 67.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 139 from 206 leaves us with 67.
Fetch the next digit (8) from the dividend, attach it to 67 and continue: 678 / 139

On to step 4:
139 goes into 678 4 times with a remainder of 122.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Deduct 556 from 678 and we're left with 122.
Include the next digit (7) from the dividend after 122, then repeat: 1227 / 139

Let's proceed to step 5:
1227 divided by 139 is 8 with a remainder of 115.
Write down 8 as next digit of the result. 
Result so far: 148.0
Subtract 1112 from 1227 to get 115.
Bring next digit (4) of the dividend behind the 115 and repeat the process: 1154 / 139

Going ahead to step 6:
139 can be fit into 1154 8 times, resulting in a remainder of 42.
Record the quotient 8 as the next digit in the result. 
Result so far: 1488.0
If we subtract 1112 from 1154, we get 42.
Include the next digit (3) from the dividend after 42, then repeat: 423 / 139

Advancing to step 7:
423 divided by 139 is 3 with a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 14883.0
Deduct 417 from 423 and we're left with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 139

Advancing to step 8:
If we divide 68 by 139, we get 0 and a remainder of 68.
Write down 0 as next digit of the result. 
Result so far: 148830.0
Deduct 0 from 68 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 9:
139 can be fit into 680 4 times, resulting in a remainder of 124.
Use 4 as the next digit of our solution. 
Result so far: 148830.4
The remainder is 124 after subtracting 556 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Moving on to step 10:
139 goes into 1240 8 times with a remainder of 128.
The number 8 becomes the next digit in our result. 
Result so far: 148830.48
If we subtract 1112 from 1240, we get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Advancing to step 11:
139 can be fit into 1280 9 times, resulting in a remainder of 29.
The number 9 becomes the next digit in our result. 
Result so far: 148830.489
Subtract 1251 from 1280 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 12:
290 divided by 139 is 2 with a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 148830.4892
Subtracting 278 from 290 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 13:
139 goes into 120 0 times with a remainder of 120.
Put 0 as the next digit of the answer. 
Result so far: 148830.4892
Subtract 0 from 120 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 14:
1200 divided by 139 is 8 with a remainder of 88.
Record the quotient 8 as the next digit in the result. 
Result so far: 148830.489208
Deduct 1112 from 1200 and we're left with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Step 15:
880 divided by 139 is 6 with a remainder of 46.
Record the quotient 6 as the next digit in the result. 
Result so far: 148830.4892086
Subtracting 834 from 880 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 16:
If we divide 460 by 139, we get 3 and a remainder of 43.
The next digit of our result is 3. 
Result so far: 148830.48920863
Subtracting 417 from 460 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Our division results in 148830.48920863 with a remaining 4.3e-08.