53409286 divided by 143 
We're looking to find how many times 143 goes into 53409286.

Moving on to step 1:
143 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 143

Moving on to step 2:
When dividing 53 by 143, we get 0 with a remainder of 53.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 53, we get 53.
Bring next digit (4) of the dividend behind the 53 and repeat the process: 534 / 143

Advancing to step 3:
534 divided by 143 is 3 with a remainder of 105.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 429 from 534, we get 105.
Grab the next digit (0) from the dividend, add it to 105, then carry on: 1050 / 143

Moving on to step 4:
143 can be fit into 1050 7 times, resulting in a remainder of 49.
The number 7 becomes the next digit in our result. 
Result so far: 37.0
Subtract 1001 from 1050 to get 49.
Include the next digit (9) from the dividend after 49, then repeat: 499 / 143

Moving on to step 5:
When dividing 499 by 143, we get 3 with a remainder of 70.
Record the quotient 3 as the next digit in the result. 
Result so far: 373.0
Subtract 429 from 499 to get 70.
Take the next digit (2) from the dividend and append it to 70, then repeat: 702 / 143

Let's proceed to step 6:
When dividing 702 by 143, we get 4 with a remainder of 130.
The next digit of our result is 4. 
Result so far: 3734.0
Deduct 572 from 702 and we're left with 130.
Grab the next digit (8) from the dividend, add it to 130, then carry on: 1308 / 143

Let's proceed to step 7:
1308 divided by 143 is 9 with a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 37349.0
Subtract 1287 from 1308 to get 21.
Bring next digit (6) of the dividend behind the 21 and repeat the process: 216 / 143

Step 8:
When dividing 216 by 143, we get 1 with a remainder of 73.
Use 1 as the next digit of our solution. 
Result so far: 373491.0
Deduct 143 from 216 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.

Step 9:
143 can be fit into 730 5 times, resulting in a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 373491.5
If we subtract 715 from 730, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 10:
The number 143 fits into 150 1 times, leaving a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 373491.51
If we take 143 away from 150, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 11:
143 can be fit into 70 0 times, resulting in a remainder of 70.
The next digit of our result is 0. 
Result so far: 373491.51
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 12:
143 can be fit into 700 4 times, resulting in a remainder of 128.
The next digit of our result is 4. 
Result so far: 373491.5104
The remainder is 128 after subtracting 572 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Moving on to step 13:
1280 divided by 143 is 8 with a remainder of 136.
Write down 8 as next digit of the result. 
Result so far: 373491.51048
The remainder is 136 after subtracting 1144 from 1280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

On to step 14:
The number 143 fits into 1360 9 times, leaving a remainder of 73.
Record the quotient 9 as the next digit in the result. 
Result so far: 373491.510489
The remainder is 73 after subtracting 1287 from 1360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Let's proceed to step 15:
When dividing 730 by 143, we get 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 373491.5104895
Subtracting 715 from 730 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 16:
When dividing 150 by 143, we get 1 with a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 373491.51048951
If we take 143 away from 150, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The final outcome is 373491.51048951, with a leftover of 7e-09.