23686900 ÷ 139 
We're looking to find how many times 139 goes into 23686900.

Advancing to step 1:
2 divided by 139 is 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.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 139

Advancing to step 2:
139 goes into 23 0 times with a remainder of 23.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 23 and we're left with 23.
Bring next digit (6) of the dividend behind the 23 and repeat the process: 236 / 139

Let's proceed to step 3:
139 can be fit into 236 1 times, resulting in a remainder of 97.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 139 from 236 and we're left with 97.
Grab the next digit (8) from the dividend, add it to 97, then carry on: 978 / 139

Advancing to step 4:
139 goes into 978 7 times with a remainder of 5.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Subtract 973 from 978 to get 5.
Bring next digit (6) of the dividend behind the 5 and repeat the process: 56 / 139

Step 5:
When dividing 56 by 139, we get 0 with a remainder of 56.
Use 0 as the next digit of our solution. 
Result so far: 170.0
Deduct 0 from 56 and we're left with 56.
Grab the next digit (9) from the dividend, add it to 56, then carry on: 569 / 139

Going ahead to step 6:
139 goes into 569 4 times with a remainder of 13.
Use 4 as the next digit of our solution. 
Result so far: 1704.0
Subtracting 556 from 569 leaves us with 13.
Take the next digit (0) from the dividend and append it to 13, then repeat: 130 / 139

Going ahead to step 7:
When dividing 130 by 139, we get 0 with a remainder of 130.
Use 0 as the next digit of our solution. 
Result so far: 17040.0
If we take 0 away from 130, we end up with 130.
Grab the next digit (0) from the dividend, add it to 130, then carry on: 1300 / 139

Step 8:
139 can be fit into 1300 9 times, resulting in a remainder of 49.
The number 9 becomes the next digit in our result. 
Result so far: 170409.0
If we subtract 1251 from 1300, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 9:
139 can be fit into 490 3 times, resulting in a remainder of 73.
Put 3 as the next digit of the answer. 
Result so far: 170409.3
Deduct 417 from 490 and we're left with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

On to step 10:
730 divided by 139 is 5 with a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 170409.35
If we take 695 away from 730, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 11:
139 can be fit into 350 2 times, resulting in a remainder of 72.
The next digit of our result is 2. 
Result so far: 170409.352
If we take 278 away from 350, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 12:
When dividing 720 by 139, we get 5 with a remainder of 25.
The next digit of our result is 5. 
Result so far: 170409.3525
Deduct 695 from 720 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 13:
If we divide 250 by 139, we get 1 and a remainder of 111.
Record the quotient 1 as the next digit in the result. 
Result so far: 170409.35251
If we take 139 away from 250, we end up with 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

On to step 14:
The number 139 fits into 1110 7 times, leaving a remainder of 137.
The number 7 becomes the next digit in our result. 
Result so far: 170409.352517
Deduct 973 from 1110 and we're left with 137.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

Advancing to step 15:
The number 139 fits into 1370 9 times, leaving a remainder of 119.
Record the quotient 9 as the next digit in the result. 
Result so far: 170409.3525179
The remainder is 119 after subtracting 1251 from 1370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Advancing to step 16:
1190 divided by 139 is 8 with a remainder of 78.
Put 8 as the next digit of the answer. 
Result so far: 170409.35251798
Subtracting 1112 from 1190 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

The final result is 170409.35251798 with a remainder of 7.8e-08.