We're dividing 43478351 by 251 
We want to figure out the number of times 43478351 can be divided by 251.

Advancing to step 1:
If we divide 4 by 251, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 251

Moving on to step 2:
The number 251 fits into 43 0 times, leaving a remainder of 43.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 43 and we're left with 43.
Take the next digit (4) from the dividend and append it to 43, then repeat: 434 / 251

Step 3:
434 divided by 251 is 1 with a remainder of 183.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 251 from 434 and we're left with 183.
Take the next digit (7) from the dividend and append it to 183, then repeat: 1837 / 251

Moving on to step 4:
If we divide 1837 by 251, we get 7 and a remainder of 80.
Put 7 as the next digit of the answer. 
Result so far: 17.0
If we take 1757 away from 1837, we end up with 80.
Take the next digit (8) from the dividend and append it to 80, then repeat: 808 / 251

On to step 5:
251 can be fit into 808 3 times, resulting in a remainder of 55.
Write down 3 as next digit of the result. 
Result so far: 173.0
Deduct 753 from 808 and we're left with 55.
Include the next digit (3) from the dividend after 55, then repeat: 553 / 251

Going ahead to step 6:
When dividing 553 by 251, we get 2 with a remainder of 51.
The number 2 becomes the next digit in our result. 
Result so far: 1732.0
Subtracting 502 from 553 leaves us with 51.
Take the next digit (5) from the dividend and append it to 51, then repeat: 515 / 251

Step 7:
If we divide 515 by 251, we get 2 and a remainder of 13.
Put 2 as the next digit of the answer. 
Result so far: 17322.0
Deduct 502 from 515 and we're left with 13.
Fetch the next digit (1) from the dividend, attach it to 13 and continue: 131 / 251

Advancing to step 8:
251 goes into 131 0 times with a remainder of 131.
Put 0 as the next digit of the answer. 
Result so far: 173220.0
If we subtract 0 from 131, we get 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Advancing to step 9:
If we divide 1310 by 251, we get 5 and a remainder of 55.
Use 5 as the next digit of our solution. 
Result so far: 173220.5
Subtract 1255 from 1310 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Moving on to step 10:
550 divided by 251 is 2 with a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 173220.52
Subtracting 502 from 550 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 11:
251 goes into 480 1 times with a remainder of 229.
Put 1 as the next digit of the answer. 
Result so far: 173220.521
If we take 251 away from 480, we end up with 229.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Let's proceed to step 12:
2290 divided by 251 is 9 with a remainder of 31.
Write down 9 as next digit of the result. 
Result so far: 173220.5219
If we subtract 2259 from 2290, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 13:
251 goes into 310 1 times with a remainder of 59.
The next digit of our result is 1. 
Result so far: 173220.52191
Subtract 251 from 310 to get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 14:
When dividing 590 by 251, we get 2 with a remainder of 88.
The number 2 becomes the next digit in our result. 
Result so far: 173220.521912
Deduct 502 from 590 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.

Advancing to step 15:
251 goes into 880 3 times with a remainder of 127.
The next digit of our result is 3. 
Result so far: 173220.5219123
If we subtract 753 from 880, we get 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

Advancing to step 16:
251 goes into 1270 5 times with a remainder of 15.
The next digit of our result is 5. 
Result so far: 173220.52191235
The remainder is 15 after subtracting 1255 from 1270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final outcome is 173220.52191235, with a leftover of 1.5e-08.