We look at the division of 21023442 by 141 
We want to figure out the number of times 21023442 can be divided by 141.

Step 1:
The number 141 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 141

On to step 2:
If we divide 21 by 141, we get 0 and a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Append the next digit (0) from the dividend to 21 and continue with: 210 / 141

Going ahead to step 3:
141 goes into 210 1 times with a remainder of 69.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 141 away from 210, we end up with 69.
Grab the next digit (2) from the dividend, add it to 69, then carry on: 692 / 141

Going ahead to step 4:
If we divide 692 by 141, we get 4 and a remainder of 128.
The next digit of our result is 4. 
Result so far: 14.0
Deduct 564 from 692 and we're left with 128.
Fetch the next digit (3) from the dividend, attach it to 128 and continue: 1283 / 141

Let's proceed to step 5:
When dividing 1283 by 141, we get 9 with a remainder of 14.
Put 9 as the next digit of the answer. 
Result so far: 149.0
The remainder is 14 after subtracting 1269 from 1283.
Append the next digit (4) from the dividend to 14 and continue with: 144 / 141

Advancing to step 6:
The number 141 fits into 144 1 times, leaving a remainder of 3.
The next digit of our result is 1. 
Result so far: 1491.0
If we subtract 141 from 144, we get 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 141

Moving on to step 7:
141 goes into 34 0 times with a remainder of 34.
Write down 0 as next digit of the result. 
Result so far: 14910.0
Subtracting 0 from 34 leaves us with 34.
Bring next digit (2) of the dividend behind the 34 and repeat the process: 342 / 141

Going ahead to step 8:
The number 141 fits into 342 2 times, leaving a remainder of 60.
Write down 2 as next digit of the result. 
Result so far: 149102.0
If we subtract 282 from 342, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 9:
141 goes into 600 4 times with a remainder of 36.
Put 4 as the next digit of the answer. 
Result so far: 149102.4
If we take 564 away from 600, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 10:
141 can be fit into 360 2 times, resulting in a remainder of 78.
Write down 2 as next digit of the result. 
Result so far: 149102.42
The remainder is 78 after subtracting 282 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 11:
The number 141 fits into 780 5 times, leaving a remainder of 75.
Use 5 as the next digit of our solution. 
Result so far: 149102.425
Subtract 705 from 780 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 12:
750 divided by 141 is 5 with a remainder of 45.
The next digit of our result is 5. 
Result so far: 149102.4255
If we subtract 705 from 750, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Our division results in 149102.4255 with a remaining 0.00045.