Let's divide 43158631 by 998
We want to divide 43158631 by 998.

Step 1:
The number 998 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 998

Moving on to step 2:
If we divide 43 by 998, we get 0 and a remainder of 43.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 43 and we're left with 43.
Append the next digit (1) from the dividend to 43 and continue with: 431 / 998

On to step 3:
998 can be fit into 431 0 times, resulting in a remainder of 431.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 431, we end up with 431.
Append the next digit (5) from the dividend to 431 and continue with: 4315 / 998

Moving on to step 4:
The number 998 fits into 4315 4 times, leaving a remainder of 323.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 3992 from 4315 leaves us with 323.
Bring next digit (8) of the dividend behind the 323 and repeat the process: 3238 / 998

Advancing to step 5:
998 can be fit into 3238 3 times, resulting in a remainder of 244.
Put 3 as the next digit of the answer. 
Result so far: 43.0
Deduct 2994 from 3238 and we're left with 244.
Bring next digit (6) of the dividend behind the 244 and repeat the process: 2446 / 998

Advancing to step 6:
998 can be fit into 2446 2 times, resulting in a remainder of 450.
The number 2 becomes the next digit in our result. 
Result so far: 432.0
Subtract 1996 from 2446 to get 450.
Grab the next digit (3) from the dividend, add it to 450, then carry on: 4503 / 998

Advancing to step 7:
When dividing 4503 by 998, we get 4 with a remainder of 511.
Use 4 as the next digit of our solution. 
Result so far: 4324.0
Subtracting 3992 from 4503 leaves us with 511.
Include the next digit (1) from the dividend after 511, then repeat: 5111 / 998

Moving on to step 8:
If we divide 5111 by 998, we get 5 and a remainder of 121.
Use 5 as the next digit of our solution. 
Result so far: 43245.0
Deduct 4990 from 5111 and we're left with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Advancing to step 9:
998 can be fit into 1210 1 times, resulting in a remainder of 212.
Write down 1 as next digit of the result. 
Result so far: 43245.1
Deduct 998 from 1210 and we're left with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Step 10:
When dividing 2120 by 998, we get 2 with a remainder of 124.
Record the quotient 2 as the next digit in the result. 
Result so far: 43245.12
If we take 1996 away from 2120, we end up with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

On to step 11:
998 goes into 1240 1 times with a remainder of 242.
The number 1 becomes the next digit in our result. 
Result so far: 43245.121
Deduct 998 from 1240 and we're left with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Going ahead to step 12:
998 can be fit into 2420 2 times, resulting in a remainder of 424.
Record the quotient 2 as the next digit in the result. 
Result so far: 43245.1212
If we subtract 1996 from 2420, we get 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Advancing to step 13:
4240 divided by 998 is 4 with a remainder of 248.
The next digit of our result is 4. 
Result so far: 43245.12124
If we take 3992 away from 4240, we end up with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Step 14:
998 can be fit into 2480 2 times, resulting in a remainder of 484.
The next digit of our result is 2. 
Result so far: 43245.121242
Deduct 1996 from 2480 and we're left with 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

On to step 15:
If we divide 4840 by 998, we get 4 and a remainder of 848.
The next digit of our result is 4. 
Result so far: 43245.1212424
The remainder is 848 after subtracting 3992 from 4840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8480, and continue the process.

On to step 16:
The number 998 fits into 8480 8 times, leaving a remainder of 496.
The next digit of our result is 8. 
Result so far: 43245.12124248
If we take 7984 away from 8480, we end up with 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Our division results in 43245.12124248 with a remaining 4.96e-07.