Let's divide 139670 by 28
We want to divide 139670 by 28.

Moving on to step 1:
28 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 28

On to step 2:
28 can be fit into 13 0 times, resulting in a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Take the next digit (9) from the dividend and append it to 13, then repeat: 139 / 28

Advancing to step 3:
The number 28 fits into 139 4 times, leaving a remainder of 27.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 27 after subtracting 112 from 139.
Append the next digit (6) from the dividend to 27 and continue with: 276 / 28

Advancing to step 4:
The number 28 fits into 276 9 times, leaving a remainder of 24.
Record the quotient 9 as the next digit in the result. 
Result so far: 49.0
If we subtract 252 from 276, we get 24.
Bring next digit (7) of the dividend behind the 24 and repeat the process: 247 / 28

Step 5:
247 divided by 28 is 8 with a remainder of 23.
The next digit of our result is 8. 
Result so far: 498.0
Subtracting 224 from 247 leaves us with 23.
Append the next digit (0) from the dividend to 23 and continue with: 230 / 28

Going ahead to step 6:
230 divided by 28 is 8 with a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 4988.0
Subtracting 224 from 230 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
60 divided by 28 is 2 with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 4988.2
Deduct 56 from 60 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 8:
If we divide 40 by 28, we get 1 and a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 4988.21
If we take 28 away from 40, we end up 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.

Going ahead to step 9:
28 goes into 120 4 times with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 4988.214
If we subtract 112 from 120, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 10:
28 goes into 80 2 times with a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 4988.2142
Deduct 56 from 80 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 11:
28 can be fit into 240 8 times, resulting in a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 4988.21428
Deduct 224 from 240 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 12:
If we divide 160 by 28, we get 5 and a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 4988.214285
Subtracting 140 from 160 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 13:
If we divide 200 by 28, we get 7 and a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 4988.2142857
If we take 196 away from 200, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 14:
28 can be fit into 40 1 times, resulting in a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 4988.21428571
Subtract 28 from 40 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 4988.21428571 and a remainder of 1.2e-08.