25391921 divided by 155 
We want to divide 25391921 by 155.

Advancing to step 1:
When dividing 2 by 155, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 155

Step 2:
The number 155 fits into 25 0 times, leaving a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Fetch the next digit (3) from the dividend, attach it to 25 and continue: 253 / 155

Advancing to step 3:
155 can be fit into 253 1 times, resulting in a remainder of 98.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 155 from 253 and we're left with 98.
Fetch the next digit (9) from the dividend, attach it to 98 and continue: 989 / 155

On to step 4:
155 can be fit into 989 6 times, resulting in a remainder of 59.
Write down 6 as next digit of the result. 
Result so far: 16.0
The remainder is 59 after subtracting 930 from 989.
Take the next digit (1) from the dividend and append it to 59, then repeat: 591 / 155

Step 5:
When dividing 591 by 155, we get 3 with a remainder of 126.
Put 3 as the next digit of the answer. 
Result so far: 163.0
Subtract 465 from 591 to get 126.
Bring next digit (9) of the dividend behind the 126 and repeat the process: 1269 / 155

Advancing to step 6:
When dividing 1269 by 155, we get 8 with a remainder of 29.
Record the quotient 8 as the next digit in the result. 
Result so far: 1638.0
Deduct 1240 from 1269 and we're left with 29.
Fetch the next digit (2) from the dividend, attach it to 29 and continue: 292 / 155

Step 7:
When dividing 292 by 155, we get 1 with a remainder of 137.
Write down 1 as next digit of the result. 
Result so far: 16381.0
Deduct 155 from 292 and we're left with 137.
Take the next digit (1) from the dividend and append it to 137, then repeat: 1371 / 155

Advancing to step 8:
The number 155 fits into 1371 8 times, leaving a remainder of 131.
The next digit of our result is 8. 
Result so far: 163818.0
If we subtract 1240 from 1371, 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.

On to step 9:
1310 divided by 155 is 8 with a remainder of 70.
Write down 8 as next digit of the result. 
Result so far: 163818.8
If we take 1240 away from 1310, 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.

On to step 10:
700 divided by 155 is 4 with a remainder of 80.
Put 4 as the next digit of the answer. 
Result so far: 163818.84
Subtract 620 from 700 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 11:
155 goes into 800 5 times with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 163818.845
If we subtract 775 from 800, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 12:
155 goes into 250 1 times with a remainder of 95.
Put 1 as the next digit of the answer. 
Result so far: 163818.8451
If we take 155 away from 250, we end up with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

On to step 13:
155 goes into 950 6 times with a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 163818.84516
Subtracting 930 from 950 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 14:
155 can be fit into 200 1 times, resulting in a remainder of 45.
Record the quotient 1 as the next digit in the result. 
Result so far: 163818.845161
If we subtract 155 from 200, 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.

Moving on to step 15:
When dividing 450 by 155, we get 2 with a remainder of 140.
The next digit of our result is 2. 
Result so far: 163818.8451612
Subtract 310 from 450 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

On to step 16:
155 can be fit into 1400 9 times, resulting in a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 163818.84516129
Subtracting 1395 from 1400 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final result is 163818.84516129 with a remainder of 5e-09.