54138984 divided by 401 
We want to divide 54138984 by 401.

Going ahead to step 1:
5 divided by 401 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 401

On to step 2:
The number 401 fits into 54 0 times, leaving a remainder of 54.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 54 to get 54.
Include the next digit (1) from the dividend after 54, then repeat: 541 / 401

Moving on to step 3:
If we divide 541 by 401, we get 1 and a remainder of 140.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 140 after subtracting 401 from 541.
Grab the next digit (3) from the dividend, add it to 140, then carry on: 1403 / 401

Step 4:
The number 401 fits into 1403 3 times, leaving a remainder of 200.
Put 3 as the next digit of the answer. 
Result so far: 13.0
The remainder is 200 after subtracting 1203 from 1403.
Grab the next digit (8) from the dividend, add it to 200, then carry on: 2008 / 401

On to step 5:
401 goes into 2008 5 times with a remainder of 3.
Write down 5 as next digit of the result. 
Result so far: 135.0
Deduct 2005 from 2008 and we're left with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 401

Moving on to step 6:
The number 401 fits into 39 0 times, leaving a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 1350.0
If we take 0 away from 39, we end up with 39.
Fetch the next digit (8) from the dividend, attach it to 39 and continue: 398 / 401

Advancing to step 7:
398 divided by 401 is 0 with a remainder of 398.
Put 0 as the next digit of the answer. 
Result so far: 13500.0
Subtract 0 from 398 to get 398.
Take the next digit (4) from the dividend and append it to 398, then repeat: 3984 / 401

Advancing to step 8:
401 goes into 3984 9 times with a remainder of 375.
Put 9 as the next digit of the answer. 
Result so far: 135009.0
Deduct 3609 from 3984 and we're left with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Let's proceed to step 9:
401 goes into 3750 9 times with a remainder of 141.
The number 9 becomes the next digit in our result. 
Result so far: 135009.9
Subtract 3609 from 3750 to get 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Going ahead to step 10:
1410 divided by 401 is 3 with a remainder of 207.
The number 3 becomes the next digit in our result. 
Result so far: 135009.93
If we take 1203 away from 1410, we end up with 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

On to step 11:
401 can be fit into 2070 5 times, resulting in a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 135009.935
Subtracting 2005 from 2070 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 12:
The number 401 fits into 650 1 times, leaving a remainder of 249.
Use 1 as the next digit of our solution. 
Result so far: 135009.9351
Subtract 401 from 650 to get 249.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2490, and continue the process.

Going ahead to step 13:
401 goes into 2490 6 times with a remainder of 84.
The number 6 becomes the next digit in our result. 
Result so far: 135009.93516
Deduct 2406 from 2490 and we're left with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Let's proceed to step 14:
The number 401 fits into 840 2 times, leaving a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 135009.935162
If we take 802 away from 840, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 15:
The number 401 fits into 380 0 times, leaving a remainder of 380.
Put 0 as the next digit of the answer. 
Result so far: 135009.935162
Subtract 0 from 380 to get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Advancing to step 16:
401 can be fit into 3800 9 times, resulting in a remainder of 191.
Put 9 as the next digit of the answer. 
Result so far: 135009.93516209
Deduct 3609 from 3800 and we're left with 191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

Our division results in 135009.93516209 with a remaining 1.91e-07.